M1A Questions
I learned in my years on GB that at some point Springfield Armory switched from forged to cast recievers, and that the cast recievers may or may not be milspec. When did this take place? My M1A, s/n 117034, was purchased new by me in 2000 or 2001. It has a TRW bolt so does that mean the reciever is milspec since it has a qov't surplus bolt? Also, both the operating rod and trigger group have a number followed by an "SA". I thought that meant Springfield Armory, and therefore were commercial parts and not military surplus. Well today I looked at the M1 Garand that Mark C has listed and in a picture of the operating rod, the number is followed by an "SA" So are all my guts military surplus? Just what do I have? Thanks in advance for any input.
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What is the difference between a standard flash hider and a National Match? is the accuracy issues? 0 -
Springfield Armory, the US Government arsenal, was one of the 4 contractors that produced the US Rifle, M14.
Springfield Armory Inc, a commercial company with no relation to the US Government, has always used cast receivers. Since USGI milspec required a forged receiver, NO SA Inc receiver was ever milspec. Dimensionally, the SA Inc receiver shapes were changed at least 10 or 20 times, & they were never made to milspec dimensions. One result is that scope mounts using the mounting notch are rarely properly aligned. However, all could accept a USGI bolt & barrel.
You may have some small parts that are USGI surplus. If you want to post photos, we may be able to help you. By 2000, many parts used were commercial.
Neal0 -
Horse Plains Drifter, your trigger housing is USGI Springfield Armory manufacture.
On Springfield Armory, Inc. operating rods, look for either: 1) 7267064 on the first line and SA centered below it or together in one line 2) 7267064-2 on the first line and SA centered below it. The first example is the earlier of the two markings. Springfield Armory, Inc. operating rods with the early marking, no -2, will not have a notch under the handle like USGI operating rods. USGI Springfield Armory operating rods are marked 7267064 SA all on one line and are machined with the notch under the handle but may or may not have the forward end vent hole.
The U. S. government did not specify the method of forming the M14 receiver. That being said, no commercial manufacture M14 type receiver has ever been made to USGI requirements. Nonetheless, there are some well made commercial M14 type receivers that have been made available to us civilians. Even USGI Harrington & Richardson Arms M14 receivers often had mislocated scope mount bolt holes.0 -
If this is Different from {Elsewhere}, then you are talking to one of the most knowledgeable M-1A/M-14 guys I've ever experienced.
HPD-you'd be well served to search around over there. Be prepared to stay a while-codenamep
http://imageseek.com/m1a/
Thought so. Welcome to GB Different...0
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