

To bad the government restricted the original barrel length guns and the American's banded the export of parts without permits.
other than the rotating cam lug might have broken off (known to happen on M2 bolts more than M1) but you would see that right off) the only thing I can suggest is a complete teardown to the trigger group removal and see if something foreign has gotten lodged behind the hammer, preventing it from rearward movement by the bolt travel




























