ROCK RIVER ARMS LAR-BT9G A4 9mm Luger 10.5" Complete Upper

Specifications: Platform: AR-15 9mm GLOCK®Caliber: 9x19Barrel: Chrome Lined 10.5" Chrome Moly, Full Auto Chamber, 1:10 TwistChamber: Chrome linedMuzzle Thread: 1/2-36 UNEFUpper Receiver: 9mm Extruded milled Aluminum A4, machined from 7075-T6 forged aluminumUpper Receiver Features: 9mm Port Door, No Forward AssistHandguard: R4 HandguardBolt Carrier Group: RRA Auto with GLOCK® CutInclude Receiver Height Front Sight Picatinny BaseInclude RRA 9mm A2 Flash HiderInclude RRA Charging Handle Informations: AT - Category BC.I.P. includedMADE IN THE USA Tested Lowers with LRBHO: ANDERSON AM-9, FAXON Bantam, TICK ARMS X-9, ANGSTADT ARMSCompatible accessories see under this article, accessories