The Adams Arms P1 is the introductory model to the P-Series. This model features Magpul MOE mid-length handguards, the standard adjustable picatinny railed piston gas system, a Magpul MOE tactical stock & grip with QD mounts, and an enhanced trigger guard. The P1 is perfect for any and all AR enthusiasts looking for a self-cleaning, piston driven rifle that provides superior performance.