"The Four Peaks Aksa Arms S4 Semi-Auto Shotgun is a Turkish-made replica of the legendary Benelli M4, utilizing the same style of gas system that can handle a wide range of 3"" and 2-3/4"" loads without adjustment. And like the original M4, the Aksa Arms S4 features a large bolt release and extended bolt handle, making it easy to operate in stressful situations. The ghost ring rear sight and fixed front sight provide a reliable targeting option, and the Picatinny rail makes it easy to add a red dot. Receiver is made from 7075-T6 billet aluminum. Chrome-plated, 4140 steel barrels are oxidation-proof and proof-tested. Manual cross-bolt safety. Turkish-made replica of the Benelli M4 Dual gas piston operating system Cycles a wide range of 3"" and 2-3/4"" loads without adjustment 7075-T6 billet receiver 18.5"" chrome-plated, 4140 steel barrel Ghost ring rear sight and fixed front sight Picatinny optics rail"