Some metric odd ball size. There are direct connect brakes for the USGI threads but none I know of for the M305. Best bet is one of these http://www.armtac.com/product/sei-2001/
Or the SA brake....can be ordered right from them.
Ditto. Got the Coast Guard brake from Armtac, threaded right on with no issues. Reduces muzzle movement and increases noise!
Coming soon, under $100.00, with the proper threads
When where how in orange ? Put me on that mail list will take two any different Styles ? Is that a socom yes ?




























