Need ID help

[seaninmich]

Anyone know how to identify an original USGI single slot gas lock screw as opposed to a repro? I've got a few, but never really bothered to find out if they were real.

[Rick B]

The slot is key in most cases. You should not be able to put a pin from a grenade launcher in it as it should be smaller from what I remember. It Will look different when you look into the slot also

[seaninmich]

Here it is, it that helps

http://www.ebay.com/itm/120909313557?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649#ht_924wt_151

[Rick B]

Sure looks real to me. Rick

[timshufflin]

Have to be able to see inside to tell for sure.