BG Complete 5" 300 BLK 1:5 Twist Upper Receiver - Black A2 4.25" M-LOK + Handstop with BCG & CH - $199.46

Description

This complete 5-inch M-LOK upper receiver comes with a 4.25-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 and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.

Barrel
Specifications
Caliber 300 BLK
Length 5"
Material 4150 Chrome Moly Vanadium
Profile Medium
Finish QPQ Corrosion Resistant
Gas System Length Micro
Gas Block Journal .750"
Dimpled? Yes
Twist Rate 1:5
Muzzle Thread 5/8x24 TPI
Weight 12oz
Barrel Extension M4 Feed Ramps
Target Crown 11 Degree

Bolt Carrier Group:

Enhanced 9310 Steel (Bolt)
8620 Tool Steel (Carrier)
Bolt is shot Peened and MPI
All BCG components are pre-polished before being processed and then post polished for an incredible shine

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 4.25-inch octo rail is compatible with any mil-spec AR15 upper. Each component is manufactured right here in Florida to precise tolerances for a firm fit and reliable service. The tapered barrel nut and all mounting hardware is included.

4.25" free float handguard
Built-in Handstop
MIL-STD 1913 Full Picatinny rail on top
1 M-Lok slot on 7 sides
Precision Machined 6000 Series aluminum, for high strength and weight savings
Clamp on system for easy assembly
Steel Barrel nut to resist movement under heat
Made in the USA

Tapered 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

Charging Handle:

Alloy Charging Handle Assembly
Complete with Standard Latch
Made from hardcoat anodized aluminum
Black finish

SKU: BG5300425OCHS-BLK