Retay Arms manufactures the Masai Mara shotgun, a lightweight high performance semi-automatic recoil driven shotgun based on the original design by Bruno Civolani. The Masai Mara uses Retay’s patented design improvements to the Civolani rotating bolt. Called the Retay Inertia Plus ™ system; It is the world's most advanced and refined kinetic energy driven rotating shotgun bolt. Inertia Plus eliminates out of battery misfire. The Masai Mara also incorporates a one of a kind push button removable trigger group and removable ejector system to improve maintenance and service of the shotgun. (less)