This Complete 7.5 inch M-LOK upper receiver comes with a 7 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 5.56
Length 7.5
Material 4150 Chrome Moly Vanadium
Profile Medium
Finish QPQ Corrosion Resistant
Gas System Length Pistol
Gas Block Journal .750"
Dimpled? No
Twist Rate 1:7
Muzzle Thread 1/2x28 TPI
Weight 16.8oz
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:

7" free float handguard
MIL-STD 1913 Picatinny rail on top
2 M-Lok slots on 3 sides
Precision Machined aircraft grade aluminum, for high strength and weight savings
Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
Clamp on system for easy assembly
Steel Barrel nut to resist movement under heat
8.9 oz with barrel nut and hardware
1.35" Inside Diameter
1.63" Wide
Made in USA

Charging Handle:

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

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

SKU: BG755567A2-BLK