The Builder’s Bench

M1 Garand Gas Cylinder Finishes

by Walt Kuleck & Clint McKee In response to a recent query about coatings for the stainless steel M1 Garand gas cylinder, gas cylinder lock and gas cylinder lock screw, a brief explanation: As manufactured, the stainless steel gas cylinders were (literally) “in the white”; a variety of coatings was

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The history of M1 Garand Bayonets

by Robert Gibson There are actually five (5) distinct types of bayonets that are “correct” for a U.S. Rifle, Cal. .30, M1, depending upon which was authorized for a particular point in time. MODEL 1905 BAYONET, WWI-Era: Originally designed for M1903 and M1917 US Rifles, this was first type to see use on

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M1 Garand Magazine Conversions

By Clint McKee Hi, Clint, I was wanting to know if there are any conversion kits (e.g., the BM-59 parts kits being offered) or gunsmiths that can modify this rifle to accept M-14 mags. To make the M1 Garand mag fed, it takes a substantial receiver modification, so part kits will do nothing other

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IHC M1s

by Robert Gibson Here are a few odds ‘n ends about IHC Garands you might like to know. IHC Garands are all Korean War and post Korean War rifles….the records show there were 337,623 IHC M1 rifles built during the production runs. All IHC M1 Garands met the governments specifications,

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What’s the deal with Bayonet Lugs on the M14?

by Walt Kuleck We get questions now and again regarding bayonet lugs on M14 rifles. As I’m sure you’re aware, several states have laws that regulate the presence or absence of bayonet lugs on semiautomatic rifles with detachable high capacity feeding devices. We won’t address those here, as we are

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What’s “8620” Steel?

by Walt Kuleck & Clint McKee I understand that the diamond symbol on M1 bolts and receivers indicates “8620” steel. What’s the composition of 8620 steel? 8620 steel is used even today in camshafts, gears, piston pins, shafts, splines and other machinery parts where a tough, ductile interior needs to be

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When do you use oil, and when do you use grease?

by Clint McKee When I wrote on rec.guns, “Oil is bad for semi’s. The robust cycling of the action throws the oil all over the place. Grease is better in almost every situation,” I was asked, “Clint, I notice that you also sell Tetra Oil. What’s the application for this? Barrels? Revolvers?” Excellent question! Tetra oil,

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What is Headspace?

by Walt Kuleck For those of us who are relatively ignorant and/or inexperienced as gunsmiths, could you be “technical” for a bit about the subject? What exactly is headspace? Where is it? What are the tolerances, etc? There are two ways to look at headspace. First, let’s consider the practical

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