The AR style Bore Guide with O-Ring inserts in place of the bolt carrier group assembly while cleaning to center cleaning rod and prevent chamber or muzzle damage. O-Ring seal at breech prevents solvent from entering the upper receiver and trigger mechanism while also keeping chemicals out of the action. Solvent Port makes using CLP/Cleaner fast & easy.
The AR15/M16 style bore guide can be used for all AR15/M16/M4 platform rifles. Work for 5.56mm & .223 Cal. variants.
*Always check and make sure rubber o-ring is attached to bore guide: Before & After Use to ensure there are no chamber or bore obstructions.
