Knight's Armament SR-15 MOD 2, 16" URX4 M-LOK Upper P/N:31962

The SR-15 E3 Mod 2 series’ 5.56 mm NATO barrel is manufactured for military grade durability, and is free-floated inside a URX4 M-LOK handguard. An improved E3 round-lug bolt design and KAC intermediate gas system both enhance function and increases bolt life far beyond the industry standard. The 5.56 mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the Knight’s line of 5.56 mm QDC Signature Reduction Devices.  16" barrel.  Comes with Magpul M-Lok rail covers and KAC M-Lok picatinny rail piece.