The retay ace receiver is designed with a standard slope back receiver.Featuring a reversible safety button, easily switch from left hand to right hand; stainless steel recoil buffer spring; airy pad system softens felt recoil by 30%; drilled and tapped receiver and open loading port.Includes shim kit.Stock Description: Adj ShimAction: Semi-AutoGauge: 12 GaugeBarrel Length: 26"Capacity: 3+1Chamber: 3.50"Receiver Description: Drilled & TappedBarrel Description: Vent RibSights: Fiber Optic BeadSafety: Reversible ButtonBarrel Length Range: 26" to 26.99"Hand: AmbidextrousStock Finish Group: Natural Camouflage