The ProMag Archangel 5.56 stock system for Remington 597 rimfire rifles allows the use of AR-15 type optics and accessories. Includes an upper receiver housing with integrated picatinny rail, lower receiver housing with pistol grip and storage compartments, and a free float handguard with top and bottom picatinny rails. Also included is an extended magazine release. The rifle stock includes a six position stock with storage compartments, a muzzle device with picatinny rails. The stock system will work with bull barrel, the muzzle device will not work with bull barrels. Does not include the polymer bayonet.