RTB Complete 10.5" 5.56 Upper Receiver - Burnt Bronze | A2 | 9" M-LOK | With Bolt Carrier Group and Charging Handle
This Complete 10.5 inch M-LOK upper receiver comes with our RTB 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 - Government
- Finish - QPQ Corrosion Resistant
- Gas System Length - Carbine
- Gas Block Journal - .750"
- Twist Rate - 1:7 inches
- Muzzle - 1/2x28 Threaded
- Weight - 19oz
- Other Info - M4 feed ramps
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
- Burnt Bronze Cerakote
- Made in the U.S.A.
Handguard:
- MATERIAL: BURNT BRONZE CERAKOTE ALUMINUM HANDGUARD, ALUMINUM BARREL NUT
- PRECISION BORE
- ACCEPTS M-LOK RAIL SECTIONS & ACCESSORIES
- 7075-T6 BARREL NUT
- RAIL LENGTH IS MEASURED ALONG THE TOP
- INNER DIAMETER: 1.36"
Charging Handle:
- Tried and True Standard Charging Handle
- Forged 7075 Aluminum construction
- Mil-Spec Type-III Hardcoat Anodized finish
- Caliber - .223 / 5.56 / 300 Blackout
- Made in the USA
Please Note: Uppers may present light fouling from our quality control process and/or test firing
