AR-15 300 AAC Blackout 16" Stainless Straight Fluted Upper Assembly / Left Hand / Mlok

300 Blackout

AR-15 300 Blackout 16" Stainless Straight Fluted Upper Assembly – Left Hand / Slick Side / MLOK Rail

The AR-15 300 Blackout 16" Stainless Straight Fluted Upper Assembly is the perfect choice for left-handed shooters looking to upgrade their AR-15 platform. Chambered in 300 Blackout, this upper offers superior performance with a 16" stainless steel barrel and a straight fluted design for weight reduction and increased heat dissipation. With no need for special bolts or magazines, it works seamlessly with your standard .223/5.56 BCG and magazines.

The slick side upper receiver is built for left-hand side ejecting, featuring a slimline shell deflector and no forward assist or dust cover, providing a clean and simple design. The barrel is precision-machined from 416 stainless steel, button rifled with a 1:7 RH twist, and is completed with a nitride triport muzzle brake to reduce recoil and muzzle rise.

Equipped with a free-floating slim MLOK rail, this upper offers versatility for mounting accessories while maintaining a lightweight and durable profile. This 300 Blackout upper is an easy drop-in solution for your AR-15 lower receiver, allowing you to switch to a more powerful caliber without the need for new magazines or bolts.

Key Features:

• Left-Hand Ejecting: Perfectly designed for left-handed shooters, this upper assembly ejects spent cases to the left for ease and comfort.

• Barrel: 16" 416 stainless steel barrel with straight fluting to reduce weight and improve heat dissipation. Chambered in 300 Blackout, featuring a 1:7 RH twist and 5/8-24 threads.

• Muzzle Device: Includes a nitride triport muzzle brake to reduce recoil and muzzle rise, ensuring a smoother shooting experience.

• Slick Side Upper Receiver: No forward assist or dust cover, maintaining a clean, lightweight profile ideal for tactical setups.

• Gas System: .750 low-profile gas block and carbine-length gas tube, hardcoat anodized to ensure durability and smooth cycling.

• Handguard: Free-floating slim MLOK rail made from aircraft-grade aluminum, anodized black for extra strength and corrosion resistance.

• Compatibility: Easily fits virtually any milspec AR-15 lower receiver 

• No BCG or Charging Handle Included – Can be purchased separately.

Specifications:

• Platform: AR-15

• Caliber: 300 Blackout

• Barrel Length: 16"

• Barrel Material: 416 Stainless Steel, Straight Fluted

• Barrel Twist: 1:7 RH twist

• Muzzle Thread: 5/8-24

• Muzzle Device: Triport Nitride Muzzle Brake

• Gas System: Carbine-length, .750 low-profile gas block

• Handguard: 12" Free-floating slim MLOK rail, black anodized

• Receiver: Slick side upper, Left-hand ejecting, 7075-T6 aluminum

• Ejection: Left-hand side ejecting (for left-handed shooters)

• Does Not Include: BCG or Charging Handle (sold separately)

Images may not be an exact representation of the product.