This Complete 10.5 inch M-LOK upper receiver comes with a 9 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:

Length - 10.5"
Material - 4150 Chrome Moly Vanadium
Profile - Heavy
Finish - Parkerized
Gas System Length - Carbine
Gas Block Journal - .750"
Twist Rate - 1:7 inches
Muzzle - 5/8 x 24 Threaded
Weight - 2.2 lbs
Other Info - .300BLK feed ramps

Bolt Carrier Group:

.125" bolt face depth
Enhanced Firing Pin

Bolt Machined from 9310 tool steel
Heat treated to military specifications
Shot Peened
MPI
Black Nitride Finish
Extractor Heat treated to military specifications
Shot peened
Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
Black Nitride Finish
Cam pin Machined to Mil Spec
Ground to meet military required tolerances

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:

9" free float handguard
MIL-STD 1913 Picatinny rail on top
3 M-Lok slots on 3 sides
Precision Machined 6000 Series 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
10 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: BG1057629A2-BLK