Blackout Defense Complete Dual Taper Lock .300 AAC Forward Assist Upper Receiver Group

Blackout Defense Complete Dual Taper Lock .300 AAC Forward Assist Upper Receiver Group. The URG features a monolithic-like upper/handguard integration with alignment pins for rigidity. The Dual Taper Lock (DTL) system uses two tapers and two interlocking barrel nuts to center and stabilize the upper and barrel bore. Upper Receiver is machined from Aerospace Grade Aluminum with advanced rigidity and a dust cover integrated within the upper. Handguard provides seven sides of M-LOK mounting slots with a full-length Picatinny top rail. Barrel is cryogenically treated 416-R stainless steel with 5R rifling and an enhanced extension for .300 AAC Blackout reliability. The package specifies Forward Assist and Dual Taper Lock Barrel as features. Bolt Carrier Group and Charging Handle are not included in the URG listing but are implied as compatible components for a complete upper configuration. Mount: M-LOK. Caliber: .300 AAC Blackout. Gas System: Pistol Length. Threads: 5/8x24. Fabric/Material: Aerospace Grade Aluminum. Gun Model: AR-15. Finish varies by model.