FIRST STRIKE Factory replacement part: AR12A102. (Newer "large hole' style for the latest T15 receiver. If you have an older T15, this receiver sleeve will not work in your upper).
Turn your First Strike T15 into a pistol style platform using the new FS T15 Pistol Remote Adapter. The Pistol Remote Adapter is designed specifically for the FS T15 platform , made out of high-grade...