True Precision Inc TPG43CMPBL True-Lock Ultimate Compensator Black Type 3 Hard Anodize 7075 T6 Aluminum Compatible w/ Glock 43/43X/48The True Precision "True Lock" Locking Compensator is designed to enhance shooting accuracy by significantly reducing muzzle rise and felt recoil. It's market defining integrated locking block ensures that the compensator can be securely attached without damaging the firearm's barrel or threads, nor does it require a thread locking compound for a secure fit. This offers a superior attachment method over traditional compensators that are on the market.