KFI USA Impala 12 Gauge 3" Chamber 28" Barrel 4 Round Semi-Auto Shotgun - Nero Desert/Black Solid, rugged polymer stock is ready to work in all conditions. Simplicity of black and wood that goes with everything. BOLT: Unlike most shotguns, Impala Plus uses a patented 6 lug design which offers more locking surface and assurance. SIGHTS: The Impala Plus uses removable, snap on sights from TruGlo offering unmatched visibility in all shooting conditions. BARREL: Drilled from 4140 steel, each and every barrel is magnetic particle tested to 1.550 BAR. The large bore design reduces friction and kickback while providing excellent grouping. RECOIL PAD: Every Impala Plus recoil pad is made from a special shock absorbing material coupled with the perfect coating for snag free, fast shouldering. CHEEK RISER: A Monte Carlo style cheek piece offers the perfect fit between shooting situations and alignment with the sights. RECEIVER: Machined from lightweight aerospace grade aluminum. Dual purpose stainless steel rails (slotted within the receiver) provides added rigidity and excellent anti-abrasion contact with the bolt. Chokes: Invector Plus Choke Set Sight: Bead and clip on fiber-optic