Engineered for consistent function across varied conditions, the Primary Weapons Systems PWS 13.5X1LH PISTON BLK promotes reliable operation. Built with aligned components and careful tolerances, the PWS 13.5X1LH PISTON BLK supports smooth mechanical behavior.\n\nDeveloped for shooters who value predictable performance during regular practice, the PWS 13.5X1LH PISTON BLK offers practical handling. Primary Weapons Systems is renowned for its dedication to reliability and innovative product development.\n\n- Manufacturer: Primary Weapons Systems\n- Model: PWS 13.5X1LH PISTON BLK\n- Product Type: Piston\n- Mounting System: Fits 13.5x1LH\n- Material: Anodized Finish, Black\n- Unique Features: Allows the use of PWS suppressors on 13.5x1 LH threads\n- What's In The Box: Primary Weapons Systems Piston, Fits 13.5x1LH, Anodized Finish, Black