The Primary Weapons Systems FRC 5.56x45mm flat Triad suppressor bipod compensator is a precision engineered accessory designed for optimal performance and versatility. Specifically crafted for 13.8 inches barrels, this compensator features a 1/2-28 thread pitch, making it compatible with Reardan type suppressor bipods. Its innovative design includes an external taper that enhances concentricity and minimizes carbon buildup on the threads, ensuring long-lasting reliability and ease of maintenance. The compensator's 3-port design, coupled with a flat shoulder, is ideal for those who prefer shooting unsuppressed, providing excellent recoil management and muzzle control. With an overall length of 2.75 inches, it effectively extends 13.8 inches barrels to a non-NFA length when pin and welded, offering a practical solution for compliance without sacrificing performance. Proudly made in the USA, this compensator is built to meet the highest standards of quality and durability. It does not require a crush washer and timing is not necessary, simplifying installation and ensuring a secure fit. Whether you're a professional shooter or an enthusiast, the PWS FRC 5.56x45mm flat Triad suppressor bipod compensator is a reliable choice for enhancing your firearm's capabilities. Designed with external threading to be compatible with reardan-type suppressor mounts The external taper enhances concentricity The innovative design effectively minimizes carbon accumulation on the threads The three-port design with a flat shoulder is ideal for shooting without a suppressor Threads with a pitch of 1/2-28 The use of a crush washer is not advised Overall length of 2.75 inches extends to 13.8 inches, achieving a non-NFA barrel length when pinned and welded