Quote:
Originally Posted by CasterTroy
Haven't done a lot of blackout research. Do the carbine barrels typically COME with pistol length gas blocks? Or is that something you had to seach and find a MFG that did it?
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A lot of manufacturers, sell their 300 blk 16 inch guns with carbine length gas system . In the 7 or 8 I have have handled , none have been reliable with subsonics. With or without a can on. I have seen we are CMMG , Wilson, or AAC all fail to function with subsonic ammo (Remington 220 grain) can on or off. Personally I tried different buffer and spring combos and opening up the gasport. Nothing made it reliable. (Got it to run about 80% with the can on). I switched to a pistol length gas system and it runs like 100% , can on or off with subs. No sign of over gassing with super sonic without the can . With the can on and supersonic ammo , occasionally the bolt wont stay ope on the last round. I tell anyone if you are going to run subs go with a pistol length gas system.