SI LOW SHOULDER O-RING KIT

SI LOW SHOULDER O-RING KIT

THIS HIGH HEAT SILICONE O-RING KIT IS SPECIFICALLY FOR LOW SHOULDERED BARRELS AS FOUND ON THE 43, 43X AND 48 THREADED BARRELS.  THE SILICONE O-RINGS ARE ABLE TO COMPRESS MORE WITHOUT ROLLING OVER THE SHOULDER OF THE BARREL WHILE STILL MAINTAINING THE POSITION AND TIMING OF PRODUCTS SUCH AS THE DARK ALLEY COMP.

THIS KIT INCLUDES:

• 3 HIGH HEAT SILICONE O-RINGS