Originally Posted by purehavoc
This is true and spikes is one that I ran into with over gasing a 16" carbine . I believe they do this to make them more reliable with cheap steel , under powered ammo . Its not a bad thing but your right it does over work components . I mitigated the problem with a 4.2 oz buffer which I believe most of their complete rifles come with a H2 buffer to eliminate that issue
they do it cuz its cheaper.
the weight of the buffer doesnt offset the gas beating on the bolt carrrier components. the gas goes into the key at higher pressure and slams the carrier open harder which can hurt the bolt lugs extractor and key more than needed.
the DI system is STILL a piston design but the bolt acts as the piston.
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Last edited by JonM; 02-17-2014 at 06:50 PM.