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BG 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4" TR M-LOK | Without BCG & CH

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Product Code: BGBU-55564TR-BLK
MSRP: $378.95
Sale Price: Sale Price: $168.95
$168.95
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Builder's Grade 5" 5.56 1:5 Twist Upper Receiver | A2 | 4" TR M-LOK | Without Bolt Carrier Group and Charging Handle

This Complete 5 inch M-LOK upper receiver comes with a 4 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel.

Barrel
Specifications
Caliber 5.56
Length 5"
Material 4150 Chrome Moly Vanadium
Profile Medium
Finish QPQ Corrosion Resistant
Gas System Length Micro
Gas Block Journal .750"
Dimpled? No
Twist Rate 1:5
Muzzle Thread 1/2x28 TPI
Weight 12oz
Barrel Extension M4 Feed Ramps
Target Crown 11 Degree

Upper Receiver:

  • Machined from a Mil-Spec 7075 T6 forging Hard Coat Anodized per Mil-A-8625F, Type III
  • M4 Feed ramps
  • Made in the U.S.A.


Handguard:

This 4 inch rail is compatible with any Mil-Spec AR15 upper. It features cuts for weight savings and increased strength. Each component is manufactured right here in Florida to precise tolerances for a firm fit and reliable service. The barrel nut and all mounting hardware included.

  • 4" free float handguard
  • MIL-STD 1913 Picatinny rail on top
  • 1 M-Lok slots on 3 sides
  • Precision Machined 6000 Series aluminum, for high strength and weight savings
  • Steel Barrel nut to resist movement under heat
  • Made in USA


T
apered Barrel Nut, designed specifically for seamless integration with micro-length gas systems. Crafted from high-quality steel for maximum durability, this barrel nut features a unique tapered design that offers superior clearance for micro-length gas tubes, eliminating the need for modifications during installation.

  • Optimized Clearance: The tapered end ensures smooth and unobstructed passage of the gas tube, preventing interference and enhancing cycling reliability in compact builds
  • Ease of Installation: Designed for hassle-free assembly, this barrel nut simplifies your build process by eliminating the need for custom fitting or adjustments
  • Versatile Compatibility: Ideal for PDW and ultra-compact AR-15 configurations, the tapered design accommodates various handguard setups, making it a versatile choice for any build

 

All NFA/ATF Rules Apply

Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.

Please Note: Uppers may present light fouling from our quality control process and/or test firing


***Please allow an additional 2-3 business days of lead time as these uppers are made to order.***

SKU:
BGBU-55564TR-BLK