The AERO PRECISION M4E1T Complete Upper featuring a 16" RM15 barrel in 5.56/223 delivers outstanding performance for your AR-15 platform. This upper incorporates the enhanced M4E1 design, seamlessly integrating with the ATLAS handguard system. The 16" RM15 barrel offers an excellent balance of accuracy, velocity, and maneuverability, making it ideal for various shooting applications.

Features and Specifications:

• Caliber: 5.56 NATO / .223 Remington
• Barrel Length: 16" RM15 profile, 4150 Chrome Moly Vanadium steel
• Twist Rate: 1:7
• Gas System: Mid-length
• Muzzle Thread: 1/2"-28
• Upper Receiver: M4E1 Enhanced, 7075-T6 aluminum
• Handguard: 15" ATLAS R-ONE M-LOK compatible
• Finish: Type III Hard Coat Anodized black
• Includes: A2 flash hider, low-profile gas block, and gas tube
• Fully assembled and test-fired
• Does not include bolt carrier group or charging handle