Retay USA Ace Extra Black 20 Gauge 3in Realtree Max-7 Semi-Automatic Shotgun - 28in - 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.