PRO SHOT Bore Guide for AR15⁄M16 and .223 Caliber Style Rifle.
The PRO SHOT AR15⁄M16 Bore Guide is made with an o-ring that protects the bore throat and keeps cleaning solvent from getting into the trigger mechanism. Always check the bore guide and make sure the o-ring is attached and not in the bore. The AR15⁄M16 Bore Guide is manufactured with delrin. Delrin is a chemical resistant material that will stand up to continual use.