What size limits on ammo for the M4?

[Sharkey]

I've always just used 2-3/4 shells for my M4 but just for the **** of askin, will these things throw any of those 2-1/4 stuff too or smaller? Has anyone tried anything other than the usual 2-3/4 or 3" in theirs and what are the limits please?

[RoadDad]

You can shoot shorter shells but not longer than 3" in the M4. I haven't personally shot anything less than 2.75 in my M4 but it should work.

[frigatecon]

Anything 3" or shorter will fire, anything shorter than 2.75" probably will not cycle the action

[RoadDad]

Anything 3" or shorter will fire, anything shorter than 2.75" probably will not cycle the action because of being sissy shot

 

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