The hatfield sas usa410w is a semi-automatic shotgun featuring a turkish walnut buttstock and forend with deluxe checkering and a recoil absorbing 0.5" ventilated rubber recoil pad.The sas operating system is a unique blend of gas and inertia, where a gas piston moves only one inch to kick the bolt rearward and start the bolts inertia travel through the operating cycle; fewer moving parts provides higher dependability.The sas gas/inertia system operates dependably with most commercially available 2.75" and 3" shells.The gas/inertia action is housed inside a receiver machined from 7075 aluminum finished in a high gloss black anodizing.The sas 28" barrel is chambered for both 2.75" and 3" shells and features a full length ventilated rib and screw-in chokes; three chokes full, modified and improved cyclinder are included.Action: Semi-AutoGauge: 410 GaugeBarrel Length: 28"Capacity: 4+1Chamber: 3"Oal: 48"Weight: 7 lbsChokes Included: F,M,ICBarrel Description: Smooth Bore/Vent RibSights: HiViz Fiber Optic FrontSafety: CrossboltBarrel Length Range: 28" to 28.99"Weight Range: 7 lbs to 7.99 lbsHand: Right HandStock Finish Group: Brown