As various states impose legislation to restrict AR-style rifles, Springfield Armory creates models to satisfy the requirements. This can be as simple as coming with a 10-round magazine or as onerous as the “California” version with a fixed stock, Strike Ind. Compliant Pistol Grip and muzzle brake instead of a flash hider. Note: Add $20 for Picatinny gas block. Model shown is SAINT AR-15 Rifle 16" 5.56 ST916556BMACA-S.