RTB Complete 14.5" 5.56 Upper Receiver | 13.5" M-LOK | Mid Length | With Bolt Carrier Group and Charging Handle
This complete upper receiver may be considered a pistol or SBR upper until a long enough muzzle device is permanently attached, providing a 16-inch Overall Length barrel.
Looking for a high-quality AR upper that is both versatile and reliable? Look no further than our 14.5" upper, which can be pinned and welded to meet the 16" OAL requirement.
This barrel is the perfect choice for those looking for a compact and maneuverable platform in close quarters (CQB) situations. Its shorter length makes it easier to move around corners and through tight spaces, while still providing exceptional accuracy and control.
One of the key advantages of our 14.5" barrel is its improved handling and balance. With a shorter overall length and reduced weight, this barrel is easier to control and maneuver. This can make all the difference in a high-stress shooting scenario, where split-second decisions and precise movements are critical.
This Complete 14.5 inch M-LOK upper receiver comes with our RTB 13.5 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 | 14.5" |
| Material | 4150 Chrome Moly Vanadium |
| Profile | Government |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | MidLength |
| Gas Block Journal | .750" |
| Dimpled? | No |
| Twist Rate | 1:7 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 24oz |
| 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:
- MATERIAL: HARD COAT ANODIZED 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
***Please allow an additional 2-3 business days of lead time as these uppers are made to order.***
