RIFLE BUILD KIT - 5.56 | BUILDER'S GRADE COMPLETE 16" UPPER RECEIVER WITH A2 | M4 6-POSITION STOCK AND BUFFER TUBE KIT | BARE NECESSITIES LOWER PARTS KIT

Builder's Grade Complete 16" 5.56 Carbine Upper Receiver | 12" M-LOK | BCG & CH:

This Complete 16 inch M-LOK upper receiver comes with our RTB 12 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.

Caliber 5.56
Length 16"
Material 4150 Chrome Moly Vanadium
Profile M4
Finish QPQ Corrosion Resistant
Gas System Length Carbine
Gas Block Journal .750"
Dimpled? No
Twist Rate 1:7
Muzzle Thread 1/2x28 TPI
Weight 27.2oz
Barrel Extension M4 Feed Ramps
Target Crown 11 Degree

 
Bolt Carrier Group:


Upper Receiver:


Handguard:


Charging Handle:

 


Tactical Sport 6-Position M4 Stock Kit:

This polymer stock is made from impact-resistant, high-strength material.

 

Bare Necessities Complete AR15 LPK:

This BN Lower Parts Kit is what you need to build a custom AR15 from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.

***Disclaimer: This made-to-order product may include minor component substitutions of military-specification quality or better. These changes, potentially differing cosmetically from shown images, ensure enhanced quality and performance. This may include ambidextrous sling loop endplates or an upgraded extra power spring.

 

Please Note: Uppers may present light fouling from our quality control process and/or test firing