Description
This assembled 6 inch M-LOK upper receiver comes with a 7 inch free float handguard that has a slant cut design and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel.
Barrel Specifications:
Caliber 300BLK
Length 6"
Material 4150 Chrome Moly Vanadium
Profile Medium
Finish QPQ Corrosion Resistant
Gas System Length Pistol
Gas Block Journal .750"
Dimpled? Yes
Twist Rate 1:7
Muzzle Thread 5/8x24 TPI
Weight 14oz
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:
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
1.65" Wide
Made in USA
Please Note: Uppers may present light fouling from our quality control process and/or test firing
SKU: BGBU-63007SFC-BLK
