Aero Precision M4E1-T Complete Upper 6.5 Grendel 18 Barrel

Aero Precision M4E1-T Features The 18-inch 416R stainless steel barrel offers excellent accuracy and is optimized with a 1:8 twist rate for stabilizing a variety of bullet weights. The barrel includes a rifle-length gas system for consistent performance and a .750-inch gas block journal making it compatible with low-profile gas blocks. The ATLAS R-ONE handguard crafted from 6061-T6 aluminum features a slim profile with M-LOK compatibility allowing for easy accessory attachment. The M4E1-T threaded upper receiver made from 7075-T6 aluminum is designed with an integrated handguard mounting platform for added strength and ease of installation. A standard A2 flash hider is pre-installed to reduce muzzle flash. Aero Precision M4E1-T Specifications Caliber: 6.5 Grendel Barrel Length: 18 inches Barrel Material: 416R Stainless Steel Barrel Finish: Bead Blasted Twist Rate: 1:8 Gas System Length: Rifle Gas Block Journal: .750 inches Muzzle Thread Pattern: 5/8x24 Muzzle Device: A2 Flash Hider Handguard Type: ATLAS R-ONE M-LOK Handguard Length: 15 inches Handguard Material: 6061-T6 Aluminum Upper Receiver Material: 7075-T6 Aluminum Finish: Black Anodized Weight: Approximately 68.5 ounces