• Aluminum handguard option • Larger charging handle option • Larger bolt relase option • Cantilever & ribed barrel options • Light weight • Oxidation Proof – Chrome plated barrels • Barrel 4140 steel and All barrels are Proof Tested. • Barrel slug or 3 choke systems(F, M,CYL). • Compatible with Benelli m2 parts and accessories • Fiber front sight • Synthetic hand guard & stock