BUSHM 0010018H175 ORCII PRO 556 16 30R ROBINEGG
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.