muffinman1604Ecco Machine's Rugged HUB adapter (17-4) that lets you use Rugged muzzle devices in any HUB can. Does not use the locking collar, but that isn't necessary as it will work like a plan B mount with coarser threads. "Grey-Black Colt Flat" moly resin. This is like a super dark grey almost black imo, and is matte. Used for a couple mags. In great shape.
Free shipping w/ tracking. No trades.
