Caliber: 12?gauge, chambers 2¾″ and 3″ shells
Operation: Gas-operated semi-automatic, dual-port system with annular piston
Barrel Length Options: 18.5″ (SPX/Tactical)
Magazine Capacity: 4+1 standard; SPX extended tube holds 7+1 (2¾″) or 6+1 (3″) shells
Safety: Ambidextrous tang-mounted thumb safety
Bolt & Cocking Indicator: Reciprocating bolt handle and cocking indicator pin inside trigger guard
Chokes: Cylinder bore for tactical variants; Field versions include interchangeable Accu-Choke (Full, Mod, IC)
Stock & Forend: Black synthetic (SPX/Tactical), with textured grip; Field models in black or camo synthetic, some walnut variants
Recoil Pad: Thick, soft rubber pad for reduced felt recoil