subdude Posted November 9, 2023 Report Share Posted November 9, 2023 Hello all...I'm new to the Thompson world and everything I Google about them leads to this forum. I recently bought a WH M1A1 and the seller gave me some mags for it. Two of them are parkerized Seymour mags and it looks like the mag catch hole on them has been modified for semi-auto rifles. Will these mags work in my full-auto rifle? When I test fired the rifle it ran beautifully...no hiccups at all but I only used an unmodified Seymour mag. Thanks for the info....I will be back here often. Link to comment Share on other sites More sharing options...
Chip Posted November 9, 2023 Report Share Posted November 9, 2023 Welcome to the boards. Unfortunately the modified oval catch holes won't hold the magazine high enough for a FA gun. Link to comment Share on other sites More sharing options...
subdude Posted November 9, 2023 Author Report Share Posted November 9, 2023 That's what I figured but I wanted to ask before I try and sell or trade them. Thanks for confirming it. Link to comment Share on other sites More sharing options...
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