Parker-Hale Screw Thread Adaptor

Features:

• ~ Adds a 1/2" UNF thread to most barrels
• ~ Fits barrels 13.5-16mm in diameter
• ~ No cutting or filing required

The Parker-Hale Screw Thread Adaptor slides over the barrel and clamps on tight, using different sized lugs to achieve the perfect fit. Once in place, any 1/2" UNF threaded moderator can be fitted to your rifle.