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New Contest Starting Now! This Target Haunts Me
Tell us about the one that got away, the flier that ruined your group, the zero that drifted, the shot you still see when you close your eyes. Winner will receive a free scope!
DARPA developed the XM-3 for the USMC around 2005. The rifles were built by Iron Brigade Armory. Here’s a link for additional information. Enjoy!
https://www.snipershide.com/shooting/threads/xm-3-on-cmp-what%E2%80%99s-the-story-behind-these.7114226/
Are you looking at the auction / rifle he referenced?
The auction he posted looks like a genuine XM-3, and there’s no M24 iron sight mount on the side.
The early Walker style triggers had the bolt lock feature (when the safety was engaged). I believe this was phased out in the early 80s.
So I believe a Walker style trigger without the bolt lock feature would be correct.