When threaded barrels are without their moderator, the Parker-Hale Screw Cut Collar is essential. It simply screws onto the existing thread to protect against damage and dirt infiltration. Features: 1/2" UNF thread Protects against expensive repairs

• Protected your threads when no moderator attached Simply screws on to existing thread half inch UNF thread

Protected your threads when no moderator attached Simply screws on to existing thread half inch UNF threadParker-Hale