Bushmaster 0010028H235 ORCII Pro 5.56 NATO 30+1 16″

the ORC II is perfect for customization. Features a 7075 Forged A4 Flattop upper receiver; 7075 forged XM15-E2S lower receiver, 14″ handguard; carbine-length gas system and a threaded barrel. Its Salt Bath Nitride MPI Bolt Carrier Group guarantees consistent and reliable firing.