AR-15 Left Hand 10.5" .300 Blackout Slim M-LOK Upper | 4150 CMV Barrel, Pistol Gas System

300 Blackout

AR-15 LEFT HAND 10.5" .300 Blackout Slim M-LOK Upper | 4150 CMV 1:7 Twist

The AR-15 Left Hand 10.5" .300 Blackout Slim M-LOK Upper is designed for left-handed shooters who want to build a versatile, compact, and high-performance .300 AAC Blackout rifle. This upper assembly includes everything needed for a reliable and durable AR-15 build with a 10.5" Mid-Government Profile Barrel, Nitride Finish, and M-LOK handguard for modular accessory attachment. Ideal for both tactical and recreational shooting, this setup is chambered in .300 Blackout, providing versatility with both subsonic and supersonic ammunition.

The left-hand A3 flat top upper receiver comes with forward assist and ejection port cover, offering durability and functionality. This assembly also features a pistol-length gas system with a .750" low profile micro gas block, ensuring smooth cycling. Whether you're building a short-barrel rifle (SBR) or just want to customize your rifle, this upper has the features you need for a top-tier shooting experience.

Key Features:

• Barrel: 10.5" .300 Blackout 4150 CMV steel with 1:7 twist for optimal stabilization, hardened to 26-32 RC for added strength.

• Muzzle Device: 5/8x24 threads with a black A2 flash hider for muzzle control.

• Upper Receiver: Left-hand A3 flat top made from 7075-T6 aluminum, black hard coat anodized, with forward assist and ejection port cover installed.

• Gas System: Pistol-length gas tube with low profile .750 micro gas block made from 4140 steel for durability.

• Handguard: 10" Slim Design M-LOK handguard made from 6061-T6 aluminum, black anodized for durability and a sleek profile.

• Compatibility: Fits standard AR-15 lowers and is perfect for left-handed shooters.

Specifications:

• Barrel Length: 10.5"

• Barrel Profile: Mid-Govt Profile

• Barrel Material: 4150 CMV steel

• Twist Rate: 1:7

• Chamber: .300 AAC Blackout

• Barrel Finish: Nitride

• Muzzle Thread: 5/8x24 with A2 flash hider

• Upper Receiver: Left-hand A3 flat top (7075-T6 Aluminum, Hardcoat Anodized)

• Gas System: Pistol-length gas tube with .750" low profile micro gas block (4140 steel)

• Handguard: 10" Slim M-LOK (6061-T6 Aluminum, Hardcoat Anodized)

• Feed Ramp: M4 Feedramps

• Ejection Port: Left-hand ejection

• Weight: Approx. 2.5 lbs (without BCG and CH)

• Does Not Include BCG or Charging Handle

Images may not be an exact representation of the product. Mlok design variations may occur based on stock availability