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Dating a ruger blackhawk by serial number - The above chart shows the approximate first serial number shipped for the indicated year. This number should be used

Ruger does not necessarily produce firearms in serial number order. There are occasions when blocks

Location: Southport, Connecticut. Sturm, Ruger & Company, Inc., better known today as simply Ruger, is based in Southport, Connecticut, with plants in Newport, New Hampshire; Mayodan, North Carolina; and Prescott, Arizona. Alexander M. Sturm and William B. Ruger founded the company in 1949. The now-publicly traded gun manufacturer makes bolt ...The Ruger Blackhawk was named after the Stutz Blackhawk automobile. [6] [7] Ruger introduced the Blackhawk in 1955. Chambered for the .357 Magnum, the Blackhawk was a simple and strong design, and it sold well. In 1956, as Smith & Wesson was introducing the new .44 Magnum, Ruger quickly developed a variant of the Blackhawk in the new cartridge. Dec 9, 2014 · Views. 186. Sep 7, 2023. Mauser9. M. Ruger's site indicates that the New Model Super Blackhawk started production in '74 with serial number 81-12401. I bought one in June '73 with serial number 81-0XXXX. Ruger really needs to hire a knowledgeable person to name their revolvers! Just about the worst naming scheme ever invented. Jess has the official Ruger Vaquero line naming down pat. Vaquero and New Model Vaquero are official. Many folks use Old Model for the first of those two names. Good luck, GJ*.41 Cal. Blackhawk Serial Numbers rollmarked with .45 Cal. Blackhawk Revolvers beginning in 1981 **.41 Cal. Blackhawk Serial Numbers rollmarked with .357 Cal. Blackhawk Revolvers beginning in 2013. The above chart shows the approximate first serial number shipped for the indicated year. Jun 30, 2017 · There are too many variables to guess a value on yours with only a serial number and no pics. It's worth more than $150 I'd bet... Marlins: 1951 336RC .30-30 - 1951 39A "Peanut" - 1988 Model 60 (22" blued) - 1982 783 22WMR. Bangin' Blackhawks Member #30 Team .22 Mag Member #69 Team 30-30 Member #1328 Team Rossi #77. Value of 3 screw ruger blackhawk .357 with 4 digit serial. never been sent ... Ruger Blackhawk .357 Three Screw I just bought a used Ruger Blackhawk .357 "Three Screw" model.So I entered a six-digit serial number from one of my Old Models and it came back with a 'can't find that one' answer. Ruger Handgun - Blackhawk, 357 mag., 4 inch barrel, made in 1958, returned to Ruger for refinsh and safety bar, flattop. Serial Number:1. Serial Number:1.Provide the serial number and someone can look it up for you.... #3. JPinAK. 12 years ago. Dear Guest ... Your Ruger Blackhawk was made in 1961 per the serial number "27806".... #6. JPinAK. 12 years ago. The way I read the Ruger list, this gun comes up as manufactured in 1960. I believe 1961 production began with #34325.Value of 3 screw ruger blackhawk .357 with 4 digit serial. never been sent ... Ruger Blackhawk .357 Three Screw I just bought a used Ruger Blackhawk .357 "Three Screw" model.As for the Old Model Super Blackhawk, production dates begin with ser# 1 in 1959 and end with 40916 in 1968. In 1969 the digit prefix series started with 80-00001 and went to 80-64750 in 1973. If you have the exact ser# we can pin it down further. Obviously, a letter from Ruger provides the definitive info. See more.To celebrate 50 years of the .357 Mag. “Flattop” Blackhawk, Sturm, Ruger & Co. produced the 50th Anniversary New Model Blackhawk, NVB34-50. Serial numbers start at 520-00001, and those ...Feb 19, 2022 · TaosGlock, My RENE reference shows your NM 45 Colt BH being made in 1973, the first year of production for New Model SAs. There were 3650 45 cal BHs made in 1973. There were also 1227 Old Model 45 cals made in 1973. which was their last year of production. Ruger is not well known for accurate serial number history. The Colt 1917 45 ACP revolver serial is most likely located under the barrel or beneath the grips on the gun. This gun was manufactured in the early to mid 1900s for military use. The gun's serial number gives you an idea of when exactly the gun was made.Girl you need a nib first serial numbers by year your serial number is the very first generation ruger m77 mark ii. This places the date: mar 2011; posts: collbran, target, which have a nib first generation ruger. It's not a term to get approximate first pisces and cancer dating ruger super blackhawk owners join date. Credit card orders must ...Ruger Rifles Serial Numbers by Year for Ruger Rifles 1961 thru 1993 ... Number 3: With No. 1 Rifle serial numbers: Mini-14: 183-40455: 184-17175: 184-26063: 184-95448:* .45 cal. Blackhawk serial numbers rollmarked with .357 cal. Blackhawk revolvers beginning in 2013. 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.Blackhawk Revolver (manufactured from 1955 to 1973) Caliber: 357 Magnum; …Value of 3 screw ruger blackhawk .357 with 4 digit serial. never been sent ... Ruger Blackhawk .357 Three Screw I just bought a used Ruger Blackhawk .357 "Three Screw" model.This is an Old Model that dates to 1968. The three screw frame is what identifies it as such, as well as the serial number. Some of the later Old Model Super Blackhawk revolvers did have a serial prefix. It was 80- so a prefix does not necessarily make it a New Model. JPWhat is the value of a Ruger Blackhawk New Model .357 magnum with serial number 35-35534? blackhawk ruger #2. kcbuck. 12 years ago. The Ruger New Model Blackhawk is valued at; Exc. Cond: $425.00 USD V.G. Cond: $300.00 USD Good Cond: $200.00 USD Hope this helps, kcbuck #3.As for the Old Model Super Blackhawk, production dates begin with ser# 1 in 1959 and end with 40916 in 1968. In 1969 the digit prefix series started with 80-00001 and went to 80-64750 in 1973. If you have the exact ser# we can pin it down further. Obviously, a letter from Ruger provides the definitive info. See more.Oct 7, 2022 · Planetcat. 966 posts · Joined 2015. #5 · Nov 3, 2022. I had a .41 mag NMBH serial #41-0000027. Ruger certified letter said made in 1973. 2009 4" .44 mag Redhawk, 1973 .41 Mag Blackhawk, 2001 4" .357 mag GP100, 2011 SR9c, 2013 SR45, Ruger American SS .30-06, 2015 .22 wmr LCR, 2016 .327 LCR and a 10/22. Reply. 45-00001. 1971. 45-13201. 1972. 45-21804. 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.Feb 7, 2011 · Ruger's data pages are quite often "off". The Red eagle News Exchange Reference shows first-year New Model .357 Blackhawks starting at serial number 32-00001 and running thru 32-33638. Serial number 32-33639 is the beginning number for 1974 production. Ruger's list has slipped a year, skipping 1973. I^3. Ruger's data pages are quite often "off". The Red eagle News Exchange Reference shows first-year New Model .357 Blackhawks starting at serial number 32-00001 and running thru 32-33638. Serial number 32-33639 is the beginning number for 1974 production. Ruger's list has slipped a year, skipping 1973. I^3.Ruger does not 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.The original .357 Magnum Ruger Blackhawk—The Flattop. Notice the flat top strap, adjustable sights, and the 3 screws in the side of the frame. Around 1956 Ruger introduced a .44 Magnum version of the Blackhawk built on a larger frame to handle the increased pressures of the new cartridge. The .357 Magnum Blackhawk continued to be …For sale is a Ruger Blackhawk revolver in .30 Carbine. Serial number- 1475. This particular model was manufactured in 1968 and features the vintage 3 screw construction. In addition, it does NOT have a transfer bar. The low serial indicates this is a first year production of the famous Ruger Blackhawk in 30 carbine!Ruger really needs to hire a knowledgeable person to name their revolvers! Just about the worst naming scheme ever invented. Jess has the official Ruger Vaquero line naming down pat. Vaquero and New Model Vaquero are official. Many folks use Old Model for the first of those two names. Good luck, GJ91. Location. Luling, Texas USA. I acquired an old M77 serial number starting with 71, so circa mid 70s with the tang safety. I know they had a recall on them because they might go off accidentally, the old man I bought it from is not familiar with this, guess will have to contact Ruger see if the original owner applied for the part to cure this.Blackhawk Revolver (manufactured from 1955 to 1973) Caliber: 357 Magnum; Beginning Serial Number: Years of Production: 1: 1955: 1737: 1956: 7318: 1957: 11676: 1958: …* .45 cal. Blackhawk serial numbers rollmarked with .357 cal. Blackhawk revolvers beginning in 2013. 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. A Jackson guitar is dated by cross-referencing the serial number with the product dating reference chart. Jackson guitars can be dated through their serial numbers, but guitars not sold in the United States are not tracked in this manner.GP100® Revolver Calibers: 22 LR, 38 Spl, 357 Mag, 10mm Auto, 44 Spl; Beginning Serial Number: Years of Production: 170-00001: 1986: 170-18081: 1987: 170-40819*.41 Cal. Blackhawk Serial Numbers rollmarked with.45 Cal. Blackhawk Revolvers beginning in 1981 **.41 Cal. Blackhawk Serial Numbers rollmarked with.357 Cal ... Dating a carbine by its serial number alone is difficult and not always accurate given the circumstances inherent with ... 2010 I have a Ruger Blackhawk, serial # 48 ...Ruger New Model Super Blackhawk Serial Number History. The serial number chart shows the first serial number of 1981 as being 83-90986 and the first serial number of 1982 being 84-43801, therefore, I'm guessing it was made in 1981. Naturally, it's just a hunch as the serial numbers can be all over the place, not in sequence, and years apart ...Compare your clarinet’s serial number to the list of Buffet Crampon serial numbers at Clarinetperfection.com to ascertain the year of manufacture. Clarinetperfection.com also has a page dedicated to identifying Buffet Crampon models that ca...After this change, the earlier model became known as the Flattop Blackhawk. This was in 1962 at about serial number 42,600. That same year, several new calibers were added to the original Blackhawk including the .41 Magnum, .45 Colt, .30 Carbine and convertible models with interchangeable cylinders in .357/9mm or .45 Colt/.45 ACP.48-56911 and *38-30081. 2013. *38-30205. 2014. *38-44634. 2015. * .45 cal. Blackhawk serial numbers rollmarked with .357 cal. Blackhawk revolvers beginning in 2013. …instructions which follow apply only to the New Model Blackhawk®* revolver. The RUGER® NEW MODEL BLACKHAWK® BISLEY™ revolver has many of the features of the New Model Blackhawk® revolvers with certain important differences, such as the hammer, trigger and grip frame. The RUGER® NEW MODEL SUPER BLACKHAWK® HUNTERis …91. Location. Luling, Texas USA. I acquired an old M77 serial number starting with 71, so circa mid 70s with the tang safety. I know they had a recall on them because they might go off accidentally, the old man I bought it from is not familiar with this, guess will have to contact Ruger see if the original owner applied for the part to cure this.instructions which follow apply only to the New Model Blackhawk®* revolver. The RUGER® NEW MODEL BLACKHAWK® BISLEY™ revolver has many of the features of the New Model Blackhawk® revolvers with certain important differences, such as the hammer, trigger and grip frame. The RUGER® NEW MODEL SUPER BLACKHAWK® HUNTERis a 44 Rem Mag single actionWe would like to show you a description here but the site won’t allow us.After this change, the earlier model became known as the Flattop Blackhawk. This was in 1962 at about serial number 42,600. That same year, several new calibers were added to the original Blackhawk including the .41 Magnum, .45 Colt, .30 Carbine and convertible models with interchangeable cylinders in .357/9mm or .45 …CMS, If you still have the factory box with the end label in tact, the catalog number will indicate if it is a convertible. Example: BN-34X. BN=New Model Blackhawk, 3=357 Mag, 4= 4 5/8" barrel length, and X=Convertible 9mm cylinder. If you don't have the end label, you can call the records section at Ruger and they will research your serial ...Ruger Rifles Serial Numbers by Year for Ruger Rifles 1961 thru 1993 ... Number 3: With No. 1 Rifle serial numbers: Mini-14: 183-40455: 184-17175: 184-26063: 184-95448:instructions which follow apply only to the New Model Blackhawk®* revolver. The RUGER® NEW MODEL BLACKHAWK® BISLEY™ revolver has many of the features of the New Model Blackhawk® revolvers with certain important differences, such as the hammer, trigger and grip frame. The RUGER® NEW MODEL SUPER BLACKHAWK® HUNTERis a 44 Rem Mag single actionI own a Ruger Blackhawk New Model in .41 Magnum.. Ruger serial number registry does not have any info on my serial number 41-14503. Any help would be greatly appreciated. Thanks JohnnySep 28, 2023 · Manufacture date Ruger 357 blackhawk serial 84790? The Ruger website, under Customer Service, Historical Data, lists date of production by model and by serial #. When was a Ruger new model blackhawk serial number 051-37753 made? The first step is you need to know how to read a serial number list. Ruger 10/22 Serial Number History. The serial numbers are listed with the starting serial number then they increment up. Serial number 22906 was made in 1966. The serial numbers went up until 1967 then the serial numbers started with 77384.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. I have a Ruger new model Blackhawk with serial number 32-160xx. I couldn't find it on the ruger site. The earliest serial number I could find was from 1974 and it was 32-33xxx. What year would it have been made and how much might it …3 sept 2020 ... How old is my sturm ruger & co .357 blackhawk it only has 4 serial numbers on it it was left to me by my grandfather - Answered by a ...Serial Number Lookup Pistols All Compact Centerfire Rimfire New Models Distributor Exclusives Pistols Available In CA Pistols Available In MA Serial Number Lookup Instruction Manuals LCP® LCP®II LCP®MAX LC380® Security-380® EC9s® MAX-9® Security-9® Ruger-5.7® Ruger American®Pistol SR1911® PC Charger™ LC Charger™ SR22® Mark IV™ 22 Charger™45-00001. 1971. 45-13201. 1972. 45-21804. 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.Ruger serial number registry does not have any info on my serial number 41-14503. Any help would be... Forums. New posts Search forums. ... .41 mag New Blackhawk Model serial number registry. Thread starter Dovehunter@333; Start date Jul 2, 2023; Help Support Ruger Forum: Jul 2, 2023 #1 D. Dovehunter@333 Bearcat. JoinedGP100® Revolver Calibers: 22 LR, 38 Spl, 357 Mag, 10mm Auto, 44 Spl; Beginning Serial Number: Years of Production: 170-00001: 1986: 170-18081: 1987: 170-4081968 posts · Joined 2017. #1 · May 3, 2019. Until this week, every time I looked up a serial number, Ruger's web site presented me with a table (list) of a models' numbers and approximate date of manufacture. They've changed that. Now I'm shown a field to enter the serial number and the web site comes back with the model number, a photo of the ...45-00001. 1971. 45-13201. 1972. 45-21804. 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.Sep 28, 2023 · Manufacture date Ruger 357 blackhawk serial 84790? The Ruger website, under Customer Service, Historical Data, lists date of production by model and by serial #. When was a Ruger new model blackhawk serial number 051-37753 made? The Ruger Blackhawk is a legendary single-action revolver that has provided shooters with decades of service, ... I was able to test the revolver with a good number of .38 Special and .357 Magnum loads. ... I just bought a Ruger 357 Blackhawk. According to serial number, I date it at 1975. But, it looks like there is a transfer bar.Ruger Vaquero Serial Number History. Vaquero Revolver. (Includes Bisley-Vaquero Models) Calibers: 357 Mag, 38-40 Win, 40 S&W, 44-40 Win, 44 Mag, 45 Colt. (Manufactured from 1993-2005) Beginning Serial Number: Years of Production: 55-00001.After this change, the earlier model became known as the Flattop Blackhawk. This was in 1962 at about serial number 42,600. That same year, several new calibers were added to the original Blackhawk including the .41 Magnum, .45 Colt, .30 Carbine and convertible models with interchangeable cylinders in .357/9mm or .45 …Blackhawk Revolver (manufactured from 1965 to 1971) Caliber: 41 Magnum; Beginning Serial Number: Years of Production: 1: 1965: 3820: 1966: 6781: 1967: 12272: 1968: 40-00001: 1969: 40-03451: 1970: 40-13852: 1971: 40-18305: 1972: 40-22301: 1973Up for grabs is a Ruger New Model Blackhawk revolver in .357 Mag. Serial number: 33-80676. This revolver comes with the original manual. After running a serial number lookup, we've determined this revolver was manufactured in 1977. A cold hammer forged barrel results in ultra-precise rifling that provides exceptional accuracy and longevity, and ...Blackhawk Revolver (manufactured from 1968 to 1973) Caliber: 30 Carbine; Beginning Serial Number: Years of Production: 1: 1968: 50-00001: 1969: 50-05980: 1970: 50 …Ruger Blackhawk .357 Three Screw. By Dang-o-shoot, 7 years ago on Ruger. 2,526 2.5K. Ruger Blackhawk .357 Three Screw. I Have a chance to buy my uncles old Ruger Blackhawk .357 Three Screw from my aunt. ... What would a Blackhawk 357 revolver serial number 31-14028 worth .ruger is ...This database contains the Swiss Schmidt-Rubin straight pull rifles with the corresponding manufacturing years. Please enter the rifle serial number without ...The next range for the MK-Is jumped from 29999 to serial number 70,000. The numbers from 30,000 to 69,000 were filled with standard autos. So as you can see, Ruger did indeed set aside serial number blocks for different guns. Now for the Single-Six, Ruger jumped from 499,000 to 800,000 because in 1964 when Ruger came out with their Super Single ...26680. 1961. 28515. 1962. 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. *.41 Cal. Blackhawk Serial Numbers rollmarked with .45 Cal. Blackhawk Revolvers beginning in 1981 **.41 Cal. Blackhawk Serial Numbers rollmarked with .357 Cal. Blackhawk Revolvers beginning in 2013. The above chart shows the approximate first serial number shipped for the indicated year.Feb 7, 2011 · Ruger's data pages are quite often "off". The Red eagle News Exchange Reference shows first-year New Model .357 Blackhawks starting at serial number 32-00001 and running thru 32-33638. Serial number 32-33639 is the beginning number for 1974 production. Ruger's list has slipped a year, skipping 1973. I^3. 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. I am curious if I can get verification if there are more Stainless Bisley Blackhawks then I am aware of and just what they may be. For example, 5.5-inch Acusport SS Bisley Blackhawks: 357 Mag - Model KRBN-355W 37-8998x (Gunbroker 102023773) (2007) 37-901xx (Koveras) (1/31/2007) 37-9002x...Feb 19, 2022 · TaosGlock, My RENE reference shows your NM 45 Colt BH being made in 1973, the first year of production for New Model SAs. There were 3650 45 cal BHs made in 1973. There were also 1227 Old Model 45 cals made in 1973. which was their last year of production. Ruger is not well known for accurate serial number history. 1294 posts · Joined 2013. #5 · Jun 11, 2013. If you call Ruger customer service they'll give you month of manufacture. Curiously enough, after dating all of my Rugers with Ruger customer service directly, I found that the Ruger serial number chart on their website is not always accurate. Some guns that clearly looked to be in one year …Joined. Aug 17, 2014. Messages. 141. Location. Iredell County, NC. I ran across a .357 Blackhawk today with a serial number BELOW the beginning serial number of first New Model 1974 production number that Ruger shows on its website which is 32-33693. This one was 32-02xxx. Its a 6.5" new model not an old model.48-56911 and *38-30081. 2013. *38-30205. 2014. *38-44634. 2015. * .45 cal. Blackhawk serial numbers rollmarked with .357 cal. Blackhawk revolvers beginning in 2013. 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.600-00001. 1982. 600-00550. 1983. 600-07734. 1984. 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.#1 · Oct 22, 2022. I have 2 Blackhawk .357 pistols. I have looked on the internet for the manufacture date from the serial numbers. One I can not find at all the other says Present. One appears to be older : 33-82685. The other says "Made in the 200th of American Liberty". 33-07335. Any idea how old theses are? Thank you, Dale.instructions which follow apply only to the New Model Blackhawk®* revolver. The RUGER® NEW MODEL BLACKHAWK® BISLEY™ revolver has many of the features of the New Model Blackhawk® revolvers with certain important differences, such as the hammer, trigger and grip frame. The RUGER® NEW MODEL SUPER BLACKHAWK® HUNTERis …The first step is you need to know how to read a serial number list. Ruger 10/22 Serial Number History. The serial numbers are listed with the starting serial number then they increment up. Serial number 22906 was made in 1966. The serial numbers went up until 1967 then the serial numbers started with 77384.Ruger Firearm & Gun Forums. Ruger Single Action & Double Action Revolvers . A Serial Number Blackhawk ... A Serial Number Blackhawk. Thread starter luedersj; Start date Jan 15, 2012; Help Support Ruger …I'm an FFL and working a possible trade for a Ruger Blackhawk, 3-screw, unaltered, .44 Mag with a 4-digit serial number made in 1957. There's some wear near the muzzle, and the original owner wrote his name and the date he got it (1958) inside the grip.Chance. . FYI The old serial number dating charts are gone from the SN lookup section of Customer Service, replaced by a search window in which to enter the …the serial number on your ruger P345 is located on the right side of the firearm directly beneath the slide. its a silver looking plate with an 8 digit number. Manufacture date Ruger 45LC 45ACP Blackhawk serial 45 12762?Sep 17, 2013 · The original .357 Magnum Ruger Blackhawk—The Flattop. Notice the flat top strap, adjustable sights, and the 3 screws in the side of the frame. Around 1956 Ruger introduced a .44 Magnum version of the Blackhawk built on a larger frame to handle the increased pressures of the new cartridge. The .357 Magnum Blackhawk continued to be manufactured ... 91. Location. Luling, Texas USA. I acquired an old M77 serial number starting with 71, so circa , The original .357 Magnum Ruger Blackhawk—The Flattop. Notice the flat top strap, adjustable sights, and the 3 screws , Mar 4, 2010 · I bet Ruger looked up the wrong serial number. The BNV=Blackhawk New Vaquero or Vaquer, Value of 3 screw ruger blackhawk .357 with 4 digit serial., instructions which follow apply only to the New Model Blackhawk®* revolver. The RUGER®, Instruction Manuals. Sturm, Ruger & Co., Inc. is on, The Ruger Blackhawk is a legendary single-action revolver that has provided shooter, * .30 Carbine Blackhawk serial numbers rollmarked with .357 cal. B, Standard & Mark I Pistol. (manufactured from 1949 to 1982) Calibe, Ruger does not necessarily produce firearms in serial number, Serial Number: Caliber: $10.00 Payment Included To receive yo, The Ruger Blackhawk is a legendary single-action rev, Ruger does not necessarily produce firearms in serial number order, If the serial number begins with a six then more then, Location: Southport, Connecticut. Sturm, Ruger &, Ruger single six serial number dating . 41 cal ruger at 603-863, May 15, 2010 · Here's the serial numbers up on the Ruger we, Girl you need a nib first serial numbers by year your serial.