In this kit, you will find everything you need to convert your AR-15 Mil-Spec lower into a PSA JAKL Pistol Lower. Featuring a Classic A2 grip and our enhanced polished trigger (EPT) which helps reduce pull weight, and is built to last. Also included are the JAKL stock adapter assembly & JAKL proprietary bolt catch that are required for your lower to function with our PSA JAKL upper assemblies. *The included Blue LoctiteA(R) must be used for the threaded adapter and adapter screw to avoid backing out during the use of the firearm.