The KRYTAC Rotary Hop-up Barrel Clip secures the inner barrel to the hop-up unit. This two (2) pack comes with two replacement barrel clips that work with the KRYTAC Rotary Hop-up units.
The KRYTAC Rotary Hop-up Barrel Clip secures the inner barrel to the hop-up unit. This two (2) pack comes with two replacement barrel clips that work with the KRYTAC Rotary Hop-up units.