2A Armament Builder Series Complete AR-15 Upper Receiver 5.56 - 12.5"

Manufactured by 2A Armament
SKU: 2A-FCU556ML12BLK-1
MPN: 2A-FCU556ML12BLK-1
Manufactured by 2A Armament
(0) No Reviews yet
$739.00

Out of Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

Details

Details

Note: Barrel length is less than 16” and must be attached to a pistol lower or registered SBR lower. All NFA and local laws and regulations apply.

2A Armament's Builder Series was designed to provide your next build with rugged, lightweight, reliable, and best of all affordable components. The Builder Series complete upper receivers are no different. These flat-top, optics ready receivers feature the Builders Series free float M-LOK handguards machined from genuine USA certified 6061 aluminum extrusions with full length top-rails and three tracks of M-LOK slots to provide plenty of space for your favorite accessories. The upper receiver is from the Palouse-Lite series that are forged from 7075-T6 aluminum with a lightweight slick side design without forward assist. Even better, these uppers are ready to roll from the factory, simply add your favorite sights, drop it on a complete lower and hit the range!

Features:
  • 12.5” barrel chambered in 5.56 NATO
  • 4150 CMV barrel made by ballistic advantage
  • 1:7 twist rate and 1/2x28 threads
  • Low profile .750” steel gas block
  • T3 compensator
  • M16 bolt carrier group Nitride finished
  • 9310 bolt MPI
  • Palouse-Lite 7075-T6 forge aluminum receiver
  • Free float M-LOK handguard
  • BCM-Mod4b ambidextrous charging handle
  • Weight: 3 lb. 6 oz.

The 12.5” 5.56 barrel is made by Ballistic Advantage out of 4150 CrMoV steel with a 1:7 twist rate optimized for 62 grain ammunition. Attached to the 1/2x28 threads is the T3 compensator to reduce felt recoil. The bolt carrier group is high quality as well with the carrier being made from 8620 steel and the bolt being made from 9310 steel and then Nitride finished. Additionally, it is magnetic particle inspected to ensure quality machining. This complete upper receiver group also features a BCM-Mod4b ambidextrous charging handle.

2A Armament is not just another firearms manufacturer. They are committed to exceptional craftsmanship and quality in the products they make. State of the art manufacturing paired with hand finishing of every part result in firearms with unmatched fit and finish.
See More

Specifications

Barrel ContourBA Hanson
Barrel Length12.5
Barrel Material41V50 Chrome Moly Vanadium Steel
Brand2A Armament
Caliber Gauge5.56 NATO
Gas System LengthMid-Length
Gas System TypeDirect Impingement
HandguardM-LOK
Muzzle DeviceT3 Compensator
Twist Rate1:7
Weight3 lbs. 6 oz.

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

No reviews available

Be the first to Write a Review