OP slide numbers and little hole on bolt??

[trekvana]

Hello all,

I noticed there is a little hole on my carbine bolt (round type). Anyone know what the purpose of this is? Also my op slide doesn't have any markings (which leads me to believe it is a commercial USGI spec repro) but it does have a long list of numbers located on the outer flat bottom of the slide - one 7 digit phrase and one 5 digit phrase. Any ideas as to what those numbers imply or are there for? FYI - the carbine I have is a Plainfield paratrooper model.

thanks
geo

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[lbelflowers]

The hole is a gas relief hole, just like the Garand bolt. Is it a round Underwood bolt? Post a picture of the slide, are the numbers 7160091 or 7161843?

Loren

[trekvana]

There are no markings on the bolt as I can tell (it may also be a repro). The first number on the slide is 7161843, the second is 28627 and it is a type 6 slide.

Edit: the slide looks exactly like this: GunPartsCorp.com

[G26ster]

If the round bolt is an Underwood, look for a WU or a .U. Below the left lug. That's where Underwood marked theirs, unlike most who marked on the lug itself.

[Bill Ricca]

If this is the slide



It was produced by High Standard Manufacturing Corp, circa 1978-80 or maybe even
a little later, under GI contract.

[trekvana]

Bill-

your carbine knowledge is unbelievable. Amazing someone was still producing carbine slides. I thought they were all but phased out at that point. Maybe the U.S. was providing these parts to the other nations using the carbine under lend/lease?

Anyone have any thoughts on that?

George

[Bill Ricca]

Thank you, but the carbines are not my area of research. My research knowledge is GI contracts, in other words: Who, Made What, When. I enjoy it because it helps me expose the fakes being made.

This slide may have been made for overseas use, or may have been produced as a spare part for carbines in storage. Years ago (I do not know about today) often contracts were let out for parts, just to keep the obsolete firearms in storage updated and in working condition.

[trekvana]

G26ster-

turns out there is no markings where the Underwood mark would have been. Reisch says that post WW2 manufacturers had the hole drilled in and some may have been unmarked which I think is the case here

[G26ster]

True. I just suggested looking, as my post war Underwood bolt (with hole) marked .U. is marked under the lug, when most bolts are marked on one of the lugs, and that's where many folks look.

[trekvana]

Sound advice. Yea I guess even with USGI post-war manufactures you either get a marking or you don't. One of the beauties of the "is my part official USGI" game we play here on the forums