6,028. Location. Dawson, Iowa. There were roughly 500 Single-Six serial numbers in that block that were Duplicated at Ruger, from D260-19500 through D260-19999. The Ruger Collectors' Association obtained most of them for sale to the RCA membership including all of the NR4's and NR9's. The rest of the guns went through Ruger's normal distribution.Instruction Manuals. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines, across both the Ruger and Marlin brands.Learn about the Ruger Security Six series, a popular .357 magnum revolver produced from 1972 to 1988. See how to disassemble, adjust sights and find the elusive Speed Six model.5 May 2024 ... After about serial number 340,000 they started marking the frames Ruger Single Six only instead of Ruger Single-Six Win. I did an internet ...Ruger: Single Six (x2), Security Six, Security 9C, SR22, GP100 (x2), LCR ; ... Did find online Ruger Companies serial number/production chart for the Single Six 22 Magnum only. Made from 1959-1969, with serial numbers starting at 30001, ending sometime after 824407.Ruger does not necessarily produce firearms in serial number order. There are occasions when blocks of serial numbers have been manufactured out of sequence, sometimes years later. Also, within a model family the same serial number prefix may be used to produce a variety of different models, all in the same block of serial numbers.Duplicate serial numbers always have an interest with OM collectors. OM Magnums were made from 1959 to 1964. Ruger started making convertibles in 1961 with 22 LR and 22 Mag cylinders so there was a period where both the Magnum models and Convertibles were in the same serial number sequence. Your Single-Six was shipped in 1961.My new to me 79 Vintage Security Six Range Trip 158 Grain Hardcast LSWC over 4.5 Grains of Universal in a .357 CaseApr 8, 2022 · The Six series serial numbers started with 150-00001 (low back frame) and went to (approx) 150-64961. In RENE, in 1974 it shows 150-64961 to 151-21779 (this was the year when the high back frames came to be) and I have a low back with s/n 151-09505 and I have a high back s/n 150-94411 (both probably transition guns).1970. 60-52410. 1971. 60-81278. 1972. The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.Serial Number Lookup; Instruction Manuals; SR22® Safety Bulletin 2024; LCP ® LCP ® II; LCP ® MAX; LC380 ® Security-380 ® EC9s ® MAX-9 ® Security-9 ® Ruger-5.7 ... Find Accessories for the Ruger New Model Single-Six ...My 150-Series Security-Six duty revolver! In April 1973 I purchased my first .357, a Ruger Security-Six in blue steel, four-inch barrel, and adjustable sights. This was to be my new duty revolver to replace my Department-issued S&W Model 10, which was in blue and had a 4" tapered barrel. In 1973 law enforcement, in this country, started …Instruction Manuals. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines, across both the Ruger and Marlin brands.19858 posts · Joined 2009. #1 · May 2, 2009 (Edited) I was checking my security-six revolver and I cannot find the serial number.I have pacmyur grips on it.Is it under the grip perhaps? Thanks for the info... I haven't got to spend much quality time with my SS in a long time..... "There are two kinds of people in this world my friend, those ...Jun 15, 2009 · Ruger Security Six Date of Manufacture. ... Please may I impose upon the expertise of you fellers for a DOM on a stainless Ruger Security Six, serial number 159-1667xRuger does not work on the Six series any more. ... 1959 - 1961 Marlin model 99M1 .22lr (before serial numbers) ... The firing pins on Service/Security/Speed - Six's, rarely break but they are replaceable if needed. Save Share. Like. cyberphobia Discussion starterRuger Firearms Security Six Pre Serial number Prefix 151 Pearl Grips. Opens in a new window or tab. Pre-Owned. $49.99. skkustoms (21,929) 100%. Buy It Now. Free shipping. New Listing Ruger Revolver Security Six Factory Checkered Wood Grips square butt. Opens in a new window or tab. Pre-Owned. $19.99.The local pawn shop has a 5inch stainless Security Six for $350 or so. The information I had indicated that Ruger made 4 and 6 inch Security Six revolvers. It seems like a nice length for .357, maybe for woods carry. ... starting at the cylinder. It is definitely a 5" Security Six, Serial Number 154-095xx. The barrel looks factory to me.The Ruger chart only shows the first serial number for each year. 156-94383 was the first # for 1981. 158-12020 was the first # for 1982. So, why would they show the 157 prefix number if a 157 numbered gun was not the first number for a certain year? That makes the 157 a 1981 gun. No assumptions.Serial Number Lookup. Enter your Ruger® serial number above to view its model number, product line, caliber, production status, ship date and instruction manual. Note: This service is provided as reference only, and accuracy is not guaranteed. For specific questions or additional information, please contact Customer Service .1970. 60-52410. 1971. 60-81278. 1972. The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.Disassembly of the Security-Six is as follows: 1: Make sure the firearm is unloaded. 2: Turn out grip screw. 3: Remove Grips. 4: Compress main spring. 5: Insert pin and decompress main spring. 6: Remove main spring. 7: Remove hammer pin. 8: Remove hammer. 9: Release and remove trigger assembly.Is there a list somewhere that helps determine date-of-manufacture based on serial number? Thanks, Bill . Feb 14, 2010 #2 contender Ruger Guru. Joined Sep 18, 2002 Messages 25,671 Location Lake Lure NC USA. ... Ruger super single six serial number 563xxx. cobra69; Aug 17, 2023; Ruger Single Action & Double Action Revolvers; Replies ...Manufacturer: Ruger Model: Security Six Serial Number: 15249328 Barrel Length: 4 Condition: Excellent . See all listings by Foothill Firearms Print this listing. Click Photo to Enlarge: Guns International #: 102598988 Seller's Inventory #: U2-18 Category - Ruger Revolvers - Security Six - .357 Magnum Revolvers.Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines, across both the Ruger and Marlin brands. For 75 years, Sturm, Ruger & Co., Inc. has been a model of ...My Security Six is from 1978, based on the serial number listing from the Ruger website. It must have been just before the warnings were added to the barrel, mine's clean. ... According to Ruger specifications a 4" Security Six weighs approximately 34 ounces. A 4" fixed sight GP100 with a half lug barrel weighs 36 ounces.Hi, I have a Security Six, NIB ser # 150-00153, the box is labeled 1970 but I understand the model didnt get introduced until 1972. Looking for opinions on value. Thanks. Welcome aboard, sfinch. If you have not done a serial number search on Ruger's Website, you may want to do so. Based on the serial number you provided, it appears …After the Gun Control Act of 1968 (effective Jan 1, 1969) BATF required Ruger to clean up their act and use a different serial number scheme. In years prior to 1969, the same exact serial number could be found on a Ruger rifle, pistol, or revolver. Further, Ruger made many mistakes and duplicated a lot of serial numbers.#Ruger security six serial number 150 grips serial number. Late in the "150-" serial number prefix range, the grip frame of the Security-Six was changed to a "highback" shape. There was also a version called the Service-Six. Some special 3.-inch-barreled guns were offered on a limited basis, and some revolvers were chambered for 9mm Luger. The ...Date of manufacture for ruger security six 357 serial 15777818? Updated: 9/28/2023. Wiki User. ∙ 13y ago. Best Answer. Ruger website, under customer service, historical data, revolver, find your model, date ranges are there.Old Single Six w/ 6 digit serial number. Hey everybody, I'm trying to find manufacture date for my Single Six and coming up short. The side says "Ruger .22 Cal Single-Six" so I assume it is 22LR. The cylinder has no markings and there is only one (that I am aware of). When I try to lookup the serial number (436392), it appears to be a …Feb 7, 2010 · Ruger Security Six SN Help? Handguns: The Revolver ForumTitle: Security-Six, Speed-Six and Police Service-Six Instruction Manual Created Date: 3/21/2012 9:52:27 AMManufacturer: Ruger Model: Security Six Serial Number: 150-47238 . See all listings by New England Guns and Parts Print this listing. Click Photo to Enlarge: Guns International #: 102017042 Seller's Inventory #: 25836 Category - Ruger Revolvers - Security Six - .357 Magnum Revolvers.Buy Together and Save. $139.90 Save 19% $113.82. Add Both to Cart. Receive $2.28 OP Bucks. Hogue Pau Ferro Handgun Grip - Security Six 87300. Hogue AR15/M16 OverMold Collapsible Buttstock, Fits Mil-Spec Buffer Tube, Black Rubber 15040. Free shipping* & free returns*. Add to Wishlist.1967. 490279. 1968. 824407. 1969. The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.Ruger Security Six 150 SN. Ruger Security Six with or without bark, serial number prefix is important, there are 150 prefix and 151 and greater prefix, they are slightly different grips. There are two categories in this section, one for each. With Bark = $265.00 Without Bark = $275.00. $265.00. Shipping: With or Without Bark-Elk Stag: *. Elk Stag.It also has its serial number stamped with 'micro' sized numbers (a few done this way). This made me misread some of the numbers for the receipt that the seller and I made for the transaction. I think the Service, Security, & Speed Six series of revolvers are very desirable in any configuration (finish, barrel length and chambering).Aug 3, 2017 · Learn about the history and features of the Ruger Security-Six, the first double-action revolver by Sturm, Ruger & Company. Find out how to identify and disassemble this classic handgun, and see some commemorative models and variants.SR9® Product Safety Warning and Recall Notice - April 2008 - We have determined that some Ruger SR9 pistols manufactured between October 2007 and April 2008 can, under certain conditions, fire if dropped with their manual safeties in the "off" or "fire" position. The pistols will not fire if the manual safety is in the "on" or "safe" position.Feb 7, 2010 · Ruger Security Six SN Help? Handguns: The Revolver ForumThe Ruger Security-Six and its variants, the Service-Six and Speed-Six are a product line of double-action revolvers introduced in 1972 and manufactured until 1988 by Sturm, Ruger & Co. ... ↑ "Ruger Security Six, Single Six, Service Six Serial Number History". 1 2 Pike, Travis (11 December 2023). "Obscure Object of Desire the Ruger Police ...In today’s digital age, security is of utmost importance. With the increasing reliance on technology for various purposes, it is crucial to ensure that the devices we use are not o...Make: Ruger Model: Security-Six Serial Number: 152-68122 Year of Manufacture: 1977 ... Ruger & Co., the Security Six was designed as a reliable and rugged firearm suitable for law enforcement ...Mark IV 22/45 Lite serial no. I've recently noticed different serial number configurations on the new Mark IV 22/45 Lite (at least on the bronze colored ones). Some are prefixed with WBR### and others start with 401### . This Mark IV 22/45 Lite on the Ruger website has a serial number prefixed with 880-###. All these include up to 9 digits.This example of a Ruger Security Six is the original (Pre-151 serial number) model with the 'humpback' grip. The frame and grips changed after Serial numbers 151xxx and higher, thus newer grips will not fit the older versions of the same model. Standard barrel lengths offered were 2.75, 4, and 6 inches.Aug 3, 2017 · Learn about the history and features of the Ruger Security-Six, the first double-action revolver by Sturm, Ruger & Company. Find out how to identify and disassemble this classic handgun, and see some commemorative models and variants.Security-Six, Speed-Six, Police Service-Six Revolver (Manufactured from 1972 to 1988) Calibers: 357 Mag, 38 Spl, 9mm; Beginning Serial Number: Years of Production: 150-00001: 1972: 150-35383: 1973: 150-64961: 1974: 151-21780: 1975: 151-76180: 1976: 152-61012: 1977: 153-60425: 1978: 154-63332: 1979: 155-76844: 1980: 156-94383: 1981: 158-12020: ...Ruger does not necessarily produce firearms in serial number order. There are occasions when blocks of serial numbers have been manufactured out of sequence, sometimes years later. Also, within a model family the same serial number prefix may be used to produce a variety of different models, all in the same block of serial numbers.3 screw single six without serial number. My wife has a 3 screw single six. It fits the basic description of the old model in every way. It has the walnut grips. I do not know exactly how barrel length is measured but from where the barrel butts the frame to the crown it is 5 3/4 in. The only other distinguishing feature is under the grips.20-77705. 1971. 21-16995. 1972. 21-53819. 1973. The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.While Ruger's Security Six line has been out of production since 1988, a total of over 1.5 million revolvers were produced and they remain well-liked and respected, as well as highly sought after in the second-hand market. 44 Magnum revolver to market was Ruger, and that revolver was the Ruger Super Blackhawk. 44 Magnum in December 1955 and the first to bring a.Ruger said any factory loaded .357 and +P .38 could be fired for full qualification sessions. The new Rugers were adopted and the Postal Unions raised a little hell about the new powerful revolvers. The directional draw belt holsters and Postal Police duty belts, which had an embossed badge, were supplied by DeSantis, and a far better quality ...Just picked up serial number 25295 with box and letter from Ruger. Jul 18, 2012 #15 F. flatgate Hawkeye. Joined Jun 18, 2001 Messages ... Ruger serial number website. rmc25; Mar 21, 2024; Ruger & Other Firearm Collecting; Replies 3 Views 332. Mar 21, 2024. ... New Model Single Six - First Year Production !! Latest: Star43; 14 minutes ago;Instruction Manuals. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines, across both the Ruger and Marlin brands.Jan 23, 2023 · 154519. 1412 posts · Joined 2019. #7 · Jan 23, 2023. Ditto @ngashooter . My New Model Single Six in my avatar has the etched numbers on the faces, and the WMR is solid, not fluted. I'm not sure if Ruger marked the fluted cylinder faces on the older model. Someone here will surely have a complete answer for you soon. Welcome aboard!Security Six's began shipping about 1972, Stainless ones came out in 1975 There is no "Pre-dating a prefix on these" Once again a reminder; Removed, obliterated or altered serial Numbers are illegal UNLESS authorized by the BATF and you have the documentation. If this is a bogus serial number and it sure seems that way, run away as it can't be ...Ruger Firearms Security Six Pre Serial number Prefix 151 Pearl Grips. Opens in a new window or tab. Pre-Owned. $49.99. Buy It Now. Free shipping. ... Grips Jay Scott Black Pearl Ruger Security Six Etc 151+ Serial # (r90) Opens in a new window or tab. Pre-Owned. $47.50. or Best Offer +$6.00 shipping.Harry, Yes indeed, Ruger did make a few Mini-14s with duplicate serial numbers but I seriously doubt they were sent back by customers and re-serialized. There were 6 Minis in the S/N range between 195-31768 and 196-09535 known to have duplicate serial numbers and according to RENE, a very rare exception.My 150-Series Security-Six duty revolver! In April 1973 I purchased my first .357, a Ruger Security-Six in blue steel, four-inch barrel, and adjustable sights. This was to be my new duty revolver to replace my Department-issued S&W Model 10, which was in blue and had a 4" tapered barrel. In 1973 law enforcement, in this country, started heading ...We offer free Shipping for orders over $500. Serial #161-47483, .357 Magnum, 6 inch barrel with a bright, excellent bore. This is the Ruger model Security-Six manufactured in 1986. The stainless steel revolver is in excellent condition retaining virtually all, 98-99% original polished stainless finish with very light handling marks.1 Dec 2011 ... Not sure of production year (have to wait for his GF to get home to get the serial number), and does not come with original grips or box. I ...Available in MANo. UPC7-36676-03855-8. Suggested Retail$369.00. Lite Rack™ system includes refined slide serrations, pronounced cocking ears and a lighter recoil spring, allowing for easy slide manipulation. Combined with low-recoiling .380 ammunition, it is the ideal pistol for training and practice. Compact for easy concealment and fits ...July 13, 2018 By Joseph von Benedikt. Bill Ruger's first double-action revolver wasn't just a success, it was almost perfect. A lot of shooters thought the design had no bugs that needed to be worked out. Many thought it had no deficiencies at all. For a lot of handgunners, the Security-Six revolver was a flawless sixshooter, and that is ...Description. These grips fit Ruger Security-Six/Police Six with serial # prefix 150 (manufactured between 1972-1974). They will not fit the 151 series that were manufactured from 1975 - 1988. Shown here are our stock materials. They are available in a variety of natural and laminated woods that are finished with catalyzed lacquer.1,103. I put a GP100 rear sight on my Security Six. The gun was a PD trade in and the sights had been bashed pretty good. A GP100 rear sight is the same as the Security Six sight. My Security Six is from 1978 and a brand new GP sight dropped right in, if that helps any. Jun 18, 2011.Security Sixes were generally .357s and had adjustable rear sights, while Speed Sixes were fixed sight guns that were made primarily in .357, but also in .38 S&W Special and 9mm Luger. Both were so-called �medium-frame� revolvers, in much the same vein as a Smith & Wesson K-frame, or the Colt D-frame, exemplified by the Diamondback.Above information I posted DID come from Ruger's serial number website by the way..... Marlins: 1951 336RC.30-30 -1951 39A "Peanut" - 1988 Model 60 (22" blued) - 1982 783 22WMR ... Ruger Security Six, Single Six, Service Six Serial Number History Google it AC . Save Share. Like. Shark Bait.Height4.35". 11 cm. Grooves6. Twist1:10" RH. Available in CANo. Available in MANo. UPC7-36676-03847-3. Compact for easy concealment, the Security-9 ® is designed to fit a variety of available holsters. Rugged construction with black oxide, through-hardened alloy steel slide and barrel and high-performance, glass-filled nylon grip frame.A nostalgic article about the Ruger Security-Six, a midsize .357 Magnum revolver from the 1970s. Learn about its features, history, variants and performance.Ruger Firearm & Gun Forums. Ruger & Other Firearm Collecting . 44 mag blackhawk low serial number ... Serial number 1171 should have been shipped in 1959. There are grip frame variations, markings on the barrel, type of box that ALL have an effect on the value. ... Security Six low back shorty in .357 mag. Terry T; Mar 8, 2024; Ruger & Other ...What profile your revolver has is usually related to it's serial number prefix, so please do include that (the 150- or 151- number at the beginning of the serial). Bark coverage can be extensive or minimal. $200 with $5 shipping. Stag grips for Ruger Security-Six, Service-Six, or Speed-Six revolvers.Ruger Single Action & Double Action Revolvers . Single 6 serual # - year of manufacture ... Go to "OM Single Six" for serial # ranges. Looks like yours is 1957. Dec 20, 2009 #5 G2 Hunter. Joined May 8, 2006 ... Not that I can't find it, because once you go there you can usually get back. :shock: Serial Number History. Dec 20, 2009 #6 S ...Here's a pic of my latest find - a Security Six which dates back to 1982 by serial number. Something kept telling me to check out the local pawn shop. I got this one for $325 including a leather holster. The action feels fairly new. I'm happy! Now I just need to clean 'er up and take 'er...iOS: Finding time to read is hard, but if you fancy yourself a fan of classic literature, from the likes of Jane Austen, Jules Verne, or Charles Dickens, then Serial Reader’s a cle...The Ruger Security Six and its variants, the Service Six and Speed Six are a product line of double action revolvers introduced in 1971 and manufactured by Sturm, Ruger & Company. These revolvers were marketed to law enforcement duty issue, military, and civilian self-defensive markets. ... Beginning Serial Number: Years of Production: 150 ...Sep 14, 2010 · Just found a really nice 6 inch Security Six but it came without a box. I would like to find the appropriate box for it. It was manufactured in 1978 which I believe would put it in the red and black box as I don't think the yellow boxes came about until early 80's. Can anyone tell me the years for the different boxes.Simple, rugged, Garand-style action with breech bolt locking system, a fixed-piston gas system and self-cleaning moving gas cylinder gives unparalleled reliability under harsh operating conditions. Cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy and longevity.So I just got a new to me Security Six about a week ago. It's a stainless 4 inch model with a 151 prefix serial number. ... Ruger: Single Six (x2), Security Six, Security 9C, SR22, GP100 (x2), ... You can find high back models with a 150- serial number as well as low back models with 151- serial numbers. I collect the Six Series revolvers and I ...Pachmayr Presentation Grip Ruger Security Six with Serial 151 or Higher 03175. ... Details; SKU: 37814: Model Number: NULL: Brand: pachmayr: UPC: 034337031758: Notify Me When Back in Stock . Add to Wish List Add to Compare. Share: Email ... being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not ...Ruger: Single Six (x2), Security Six, Security 9C, SR22, GP100 (x2), LCR ; ... Did find online Ruger Companies serial number/production chart for the Single Six 22 Magnum only. Made from 1959-1969, with serial numbers starting at 30001, ending sometime after 824407.Nov 20, 2007. Messages. 5,208. Location. Southwest Washington. On the way home from the show today, I stopped by a gunshop. They had a beautiful RDA-34 Security Six. The SN was 155-016xxx. Other than looking unfired, the serial numbers were smaller than usual.Where is the model number on a Ruger 10 22? "MODEL 10/22 CARBINE - . 22 L.R. CALIBER" is stamped on the left side of the receiver along with the Ruger eagle logo. The Sturm, Ruger address is stamped on the top of the barrel, and there is no manual warning on this rifle. Where is the serial number on a Ruger handgun? This will tell you the ...Security-9 ® Ruger-5.7 ... Single-Six Revolver with .17 Hunter Convertible Mach 2 Cylinders; Trap Shotgun; ... Whenever practical, identify the serial number and caliber of the firearm for which you are ordering parts so that we can properly match the required components to the vintage of the firearm.Manufacturer: RUGER Model: SECURITY-SIX Serial Number: 151-866?? Barrel Length: 6 Condition: EXCELLENT . See all listings by Classic Firearms Print this listing. Click Photo to Enlarge: Guns International #: 101803032 Seller's Inventory #: 31628 Category - Ruger Revolvers - Security Six - .357 Magnum Revolvers.I have shot this gun with both factory .357 mag and hand loads and this gun shoots and handles well, The revlover was made in 1977 and functions and shoots very well. Serial #152-82203 {MODERN} Price: $795.00 Handgun Caliber:.357 Magnum Manufacturer: Ruger Model: Security Six Serial Number: 152-82203 Barrel Length: 4 Condition: Very Good to ...Single Six Serial Number With a Prefix. ... It has a letter "D" in front of the serial number which dates it to 1968. What, or any, significance does this prefix ... Ruger realized there was another gun with the same serial number already so yours got the D added. Some collectors collect the D guns so to those folks yours has a ...Manufacturer: Ruger Model: Security Six Serial Number: 154-78430 Caliber Info:.357mag . See all listings by New England Guns and Parts Print this listing. Click Photo to Enlarge. Guns International #: 101157462 Seller's Inventory #: 15215 Category - Ruger Revolvers - Security Six - .357 Magnum Revolvers.Mar 8, 2007 · With the gun I will include Jay Scott grips for 150 serial number and Herrett S, The Ruger Single-Six is a single action rimfirerevolver produced by Sturm, Ruger. The Single-Six was first released, Late in the "150-" serial number prefix range, the grip fr, Ruger said any factory loaded .357 and +P .38 could be fired for full qualification sessions. The n, I was at the LGS and looking about for a new CCW when I spied a Security Six, 4in, blu, After the Gun Control Act of 1968 (effective Jan 1, 1969) BATF required Ruger to clean up their act and, When it comes to managing security systems, keeping track of device serial numbe, It can be used to determine the approximate year your Ruger f, New Model Single-Six Colorado Centennial Revolver. Caliber: 22 , I just picked up a blued Security Six.. Great gun. I', Ruger does not necessarily produce firearms in seri, United States - Sturm, Ruger & Co. Number produced. Ove, Beginning Serial Number: Years of Production: 300-000, These Mesquite wood grips fit Ruger Security-Six/Police Six with seria, 61-prefix guns are from late in 1972. They are the last , Thomas404. 1 post · Joined 2014. #4 · Jul 22, 2014. Security , Old Single Six w/ 6 digit serial number. Hey everybo, ruger single six serial number history-ajafodafaxi's blog.