Gmcrigger2007 Posted April 6, 2023 Share Posted April 6, 2023 Just curious about what happens if a piston breaks while shooting an M4 ? Will it just function as an inertia shotgun ? Quote Link to comment Share on other sites More sharing options...
Sukhoi_fan Posted April 6, 2023 Share Posted April 6, 2023 (edited) It just cycles slower on one piston. Dunno about two broken pistons - I doubt there's enough force to unlock the bolt. Perhaps someone else has some experience with that. Save yourself some grief with spares and buy my new Benelli M1014 (fixed choke) barrel assembly. Edited April 6, 2023 by Sukhoi_fan 1 Quote Link to comment Share on other sites More sharing options...
Gmcrigger2007 Posted April 9, 2023 Author Share Posted April 9, 2023 How old is the Barrel ? Quote Link to comment Share on other sites More sharing options...
Sukhoi_fan Posted April 9, 2023 Share Posted April 9, 2023 13 hours ago, Gmcrigger2007 said: How old is the Barrel ? Unknown, no date code on barrel. This is the later (current) version with the larger lug at receiver interface. Quote Link to comment Share on other sites More sharing options...
Gmcrigger2007 Posted April 11, 2023 Author Share Posted April 11, 2023 Thanks for replying , Quote Link to comment Share on other sites More sharing options...
StrangerDanger Posted April 11, 2023 Share Posted April 11, 2023 It will function with a broken piston. I have had it happen on my first M4. I only noticed it was broken because a portion of the piston entered into the action and caused a stoppage. It snapped near the shoulder that impacts the barrel assembly. The breakage was similiar to this one, but it broke on the opposite piston position. You could experiment with removing one or both pistons to see what happens. Quote Link to comment Share on other sites More sharing options...
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