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9/22/2017 12:11:25 AM
Posted: 8/9/2005 11:57:11 AM EDT
OK so do the 9mm ARs use the gas system to unlock the bolt or are they pure blowback i.e. unlocked relying on bolt mass and recoil spring only.
Link Posted: 8/9/2005 12:44:37 PM EDT
Blockback action.....

9mm's are fun to shoot but get very dirty so clean up can be a pain.
Link Posted: 8/9/2005 12:50:13 PM EDT

Originally Posted By JMR:
Blockback action.....

9mm's are fun to shoot but get very dirty so clean up can be a pain.



thanks, any idea where I can see some schematics of the insides? I have a standard Eagle arms M15 and want to know if I can put a 9mm upper on it?
Link Posted: 8/9/2005 12:58:30 PM EDT
the 9mm upper will fit on basically any ar15 lower.



check out the rimfire & pistol calibers forum here
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