AR-15 6.5 Grendel 16" Nitride Upper Assembly, Left Hand, M-LOK, 1:8 Twist

6.5 Grendel

AR-15 6.5 Grendel 16" Nitride Upper Assembly, Left Hand, 1:8 Twist, M-LOK Free Float Handguard

The AR-15 6.5 Grendel 16" Nitride Upper Assembly (Left Hand) is the perfect drop-in solution for upgrading your AR-15 platform. This upper features a 16" 4150 CMV M4 profile barrel chambered in 6.5 Grendel Type 2 (true 6.5 Grendel chambering), optimized for heavier projectiles with a 1:8 RH twist rate. The .750 under gas block and 5/8x24 threaded muzzle provide a reliable foundation for your next build, while the carbine-length gas system ensures smooth cycling.

This left-hand upper assembly comes with a 15" rifle-length slim M-LOK free float handguard, made from aircraft-grade aluminum and finished with a black hardcoat anodize for maximum durability. The handguard’s free-floating design helps reduce accuracy-reducing pressure, providing better precision during shooting.

The A3 flat top upper receiver is crafted from 7075-T6 aluminum forgings and comes with forward assist and a dust cover installed. T-marked rails ensure easy attachment of your accessories and optics. The upper assembly also features a low-profile gas block and stainless steel gas tube for long-lasting performance.

This AR-15 Left Hand 6.5 Grendel 16" Nitride Upper Assembly is perfect for left-handed shooters, featuring a 1:8 twist barrel, M-LOK handguard, and a carbine-length gas system. Built for durability and precision, it’s ready for heavy-duty use.

Key Features:

• 16" 4150 CMV M4 Profile Barrel chambered in 6.5 Grendel Type 2

• 1:8 RH Twist for optimal accuracy with heavier bullets

• 15" Rifle-Length Slim M-LOK Free Float Handguard for modularity and reduced pressure points

• Low-Profile .750 Gas Block for smooth cycling

• A3 Flat Top Left-Hand Upper Receiver with 7075-T6 Aluminum Forging

• Black A2 Flash Hider for improved recoil control and flash reduction

• Carbine-Length Gas System with Stainless Steel Gas Tube

• T-Mark Rails for easy mounting of accessories

Note: This upper assembly does not include BCG and Charging Handle, which can be purchased separately. Handguard may vary in design depending on stock availability, but the same excellent quality is ensured.