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AR15.COM
AR Sponsor
1/4/2017 8:05:53 PM EDT
I'm looking to change out the gas block on my Bushmaster AR10 and was curious about the differences in blocks.  I have read conflicting posts about AR15 vs AR10 gas blocks and wasn't sure what I needed.  I went to Aeros website and they had no 308 specific gas blocks, only multi-caliber blocks.  Is the gas port on a .308 actually bigger or can I use an AR15 gas block.

Edit: Or should I just take a dremel to the bayonet lug so that a rail will fit over it?
1/6/2017 6:25:15 PM EDT
[#1]
Interchangeable. They go off the diameter of the barrel at the gas port.
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