S4 Unique
• Auto gas regulating piston system allows the operator to shoot with light loads and heavy loads without any modification while keeping the recoil %20-%30 less than convantionel shotguns and needs much less maintenance
• Larger bolt relase option
• Larger charging handle option
• Fixed stock option
• Aluminium handguard option
• Teloscopic stok and cheek riser provides better ergonomics
• Oxidation Proof – Chrome plated barrels
• Barrel 4140 steel and All barrels are Proof Tested.
• Barrel slug or 3 choke systems(F, M,CYL).
• Non slippery ergonomic grip .
• Compatible with Benelli m4 parts and accessories
• Ghost sights allows better target acquisition and faster follow up shots

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