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It`s a classic last produced in 1936—the Remington Model 12.
A two or three letter code on the left side of the barrel identifies the month and year of manufacture. The first letter identifes the month, the other letter(s) identify the year.
The Remington Model 12 was a slide-action rifle designed by John Pedersen and produced by the Remington Arms Company from 1909 to 1936.
Grades Offered:

12A Standard Grade, 12B Gallery Special, 12C Target, 12C N.R.A. Target Grades.

From August 1912 until first discontinued by Winchester in May 1964, nearly two million Model 12 shotguns were produced in various grades and barrel lengths.
History. Most individual manufacturers habitually put serial numbers on the weapons they produce. Such numbers can be used to ascertain the name of the manufacture, place and date of manufacture. At least for some manufacturers, a serial number can unlock myriad details about the weapon.
Serial Number Information

Under current federal law serial numbers must be located on the frame or receiver of every firearm. Serial numbers (or partial numbers) can also be located on many other parts of firearms as well.

The Model 12 was the first internal-hammer, pump shotgun produced by the company. Designed by Thomas Crossley Johnson it followed in the success of the Model 1897 of which nearly 1 million were produced.
An internal hammer shotgun with an external tubular magazine, Winchester produced the Model 12 from 1912 to 1964, a 51-year production life. Nearly two million shotguns were manufactured during that period in various grades, barrel lengths, and chamberings. A special production occurred in 2006 with limited numbers.

Bearing the most popular bolt-action rifle in history. Top choice of military and law enforcement officers, the Model 700 is unequalled in precision. Whether defending freedom or pursuing big game, its out-of-the-box accuracy is unmatched.

The Remington Model 870 shotgun is the best-selling gun in Remington history. Introduced in 1950 to replace the Model 31, it has been produced in a vast number of variants and is still in production. Versions have been made for military and law enforcement, as well as for the traditional sporting market.
Loaded through the action`s bottom and fed from a tubular magazine, Model 12s hold six rounds and can be fired quickly.
Finding the Gun Model

Model numbers or names are often stamped or engraved on the barrel or slide, often along with the Make.

The Remington Model 742, also known as the Woodsmaster, is a semi-automatic rifle that was produced by Remington Arms from 1960 until 1980.
The Remington Model 513 Matchmaster is a bolt-action rifle, manufactured from 1940 to 1968.
The Obliterated Serial Number Program allows law enforcement agencies to identify recovered firearms whose origins have been masked by serial number destruction or alteration. ATF uses the information to identify firearms trafficking patterns and related crimes.
A serial number (SN) is a number assigned to each individual product in order to distinguish that product from all others. The serial number is sometimes used only for warranty control and sometimes used for both warranty control and for version control.
The Easiest Way to Identify a Gun Model Type

Long guns tend to have that information stamped directly on the barrel. Pick up a rifle or shotgun and you`ll see it, usually where the barrel meets the rest of the gun. Sometimes it`s on the right side, sometimes on the left.

Caliber is used to describe the size of a rifle or handgun bore and the size of cartridges designed for different bores. Caliber usually is measured as the diameter of the bore from land to opposite land and is expressed in hundredths of an inch, thousandths of an inch, or millimeters.
Rifle barrels typically do NOT have serial numbers. The number goes on the receiver. Some European countries require the practice, but those rifles don`t normally make it here. Pistols like the Glock have both to satisfy both US and European laws.
357 Sig. Most of the time, there is just the one number for caliber. However, sometimes there is another number, such as 7.62×39, 5.56×45, or 9×19. The first number is still the caliber, but the second number denotes the length of the cartridge.
The Model 12 was offered with barrel lengths of 20, 26, 28, and 30 inches with Cylinder Bore, Improved, Modified, Full, Skeet, and Trap chokes.
Remington continues producing ammunition, but RemArms, which bought the firearms business in 2020, now designs, builds, and ships Remington firearms. Sturm Ruger & Co., better known simply as Ruger was founded in Connecticut in 1949 by William Ruger and Alexander Sturm.
Winchesters after 1906

Most Winchester records for firearms manufactured after 1906 to the end of the surviving records only contain dates of manufacture. These date-of-manufacture records are called Serial Number Application (SNA) records.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

I have a Winchester Mod 1893 12 Ga shotgun that i inherited from my grandfather that was his father’s. I’m trying to figure out the manufacturing date of it. The serial number is A186XX. Is there any way I can figure out which day and month it was manufacture?
ANSWER : You may have to a little Google search, but at one time Winchester had a site where you could check the manufacture dates. If that fails, take it to a reputable gun dealer or gunsmith. I suspect the gunsmith may be the better of the two.

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Trying to find the value, manufacture date etc. for a Colt Model No. Serial number as found on cylinder door, 7 706. Top of Barrel reads “COLT’S PT.F.A. MFG. CO HARTFORD CT U.S.A.

The colt pistol is a double action 45, w/ black plastic grips, lanyard ring on bottom of grip, RAC on left side above grip. Appears to have additional initials on right side above grip-JTT, US under cylinder on right side etc.

Trying to find the history, manufacture date etc. and value.

ANSWER : Here is the site to date by serial number.

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I have just purchased the S&W Model 10 with Serial Number 3002350. Should the number on the cylinder arm match the serial number on the butte?
ANSWER : Yes they should. However

This thread says the number on the frame is model designation.

Lots of info here on variations

These people will date it for you.

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I have inherited a 12 ga remington model II,,,serial #359762,, can you give me an approximate date this gun was manufactured and can the barrel be exchanged or replaced??
ANSWER : Both models 1100 and 1187 have a variety of replacement barrels available for them. They are fairly common. Can’t help you with the date but Remington is an outstanding firearms company to deal with. Try their website.

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Where is the serial number located on a remington model 37 rangemaster, cal,22 rifle?
ANSWER : Introduction Year:

Year Discontinued:

Total Production:
Approximately: 12,200

C.C. Loomis, A.L. Lowe, K.J. Lowe

Action Type:
Bolt Action – Clip Magazine

.22 Long Rifle

Serial Number Blocks:
Starting: 00001Ending: 12300

Grades Offered:
Model 37 Rangemaster37 Target37AR37AF37AX37AM37AV37AS


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Have a remington model 12 serial number #127375 would like to know approx- year of manufacture
ANSWER : Remington Year of Manufacture Codes maybe found on the barrel of your Remington rifle [or shotgun] on the left side, just forward of the receiver; the first letter of the Code is the month of manufacture, followed by one or two letters which are the year of manufacture. For shotguns with removeable barrels, the code will be valid for the manufacture of the barrel; maybe for the receiver, as barrels do get switched around. According to the “Blue Book of Gun Values”, the coding continues as follows:Month Codes: [first letter]B – L – A – C – K – P – O – W – D – E – R – X1 – 2 – 3 – 4 – 5 – 6 – 7 – 8 – 9 – 10 – 11 – 12Year:______Code: [second (and third*) letters]1930_______ Y1931_______ Z1932_______ A1933_______ B1934_______ C1935_______ D1936_______ E1937_______ F1938_______ G1939_______ H1940_______ J1941_______ K1942_______ L1943_______ MMZ1944_______ NN1945_______ PP1946_______ RR1947_______ SS1948_______ TT1949_______ UU1950_______ WW1951_______ XX1952_______ YY1953_______ ZZ1954_______ A1955_______ B1956_______ C1957_______ D1958_______ E1959_______ F1960_______ G1961_______ H1962_______ J1963_______ K1964_______ L1965_______ M1966_______ N1967_______ P1968_______ R1969_______ S1970_______ T1971_______ U1972_______ W1973_______ X1974_______ Y1975_______ Z1976_______ I1977_______ O1978_______ Q1979_______ V1980_______ A1981_______ B1982_______ C1983_______ D1984_______ E1985_______ F1986_______ G1987_______ H1988_______ I1989_______ J1990_______ K1991_______ L1992_______ M1993_______ N1994_______ O1995_______ P1996_______ Q1997_______ R1998_______ S1999_______ T2000_______ U2001_______ W2002_______ X* the years 1943 though 1953 had double letters: ie, MM = 1943As maybe seen, the year code letters duplicate; some knowledge of when the model was introduced should resolve the actual year of manufacture.Remington owners: COPY this table to your Hard Drive……! ! another couple helpfull links:…irearm_models/…Codelist21.pdf

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On my model 770 in 300 mag. new right out of the box, cleaned in and oiled it but the bolt action was still sticky and after firing a box and a half though it it still will not eject the spent casing and I have to turn the gun on it’s side and let it drop out on it’s own. I have even called Remington’s repair shop in Or. and they can’t guarantee it will work as he said it was nothing but a cheap rifle from Remington. I will be sending to Remington’s repair shop and if they can not repair it what rights do I have to get my money back? As I don’t feel that I should keep on having to pay for shipping all the time for there poorly made rifle.
ANSWER : I am not sure what u are asking here if anything??

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