BUILDER'S GRADE COMPLETE 6" 300 BLK UPPER RECEIVER | A2 | 5.5" SLANT CUT M-LOK | WITH BOLT CARRIER GROUP AND CHARGING HANDLE
USE CODE SEP10BER TO GET IT FOR $202.65
This Complete 6 inch M-LOK upper receiver comes with a 5.5 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 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 - 6"
- Material - 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
- Finish - QPQ Corrosion Resistant
- 11-Degree Target Crown - Further improve accuracy
- Gas System Length
- Profile - Medium
- Gas Block Journal - .750" Gas Block Journal
- Twist Rate - 1/7 Twist
- Muzzle - 5/8x24 Threaded Muzzle
- Weight - 14oz
- Other Info - QPQ coated M4 Feed Ramp Extension
- 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
- 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.
- 5.5" 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
- 8.8 oz with barrel nut and hardware
- 1.35" Inside Diameter
- 1.65" Wide
- Made in USA