Out of stock
2A Armament Gen 2 Balios Lite Billet Upper Receiver ‒ 2A-MCBU-4
Out of stock

2A Armament Gen 2 Balios Lite Billet Upper Receiver ‒ 2A-MCBU-4

SKU 516445651
Model Number 2A-MCBU-4
Brand 2A Armament
UPC 854299007413
Caliber .223 Remington, .300 AAC Blackout, 5.56x45mm
This product is fulfilled by a PSA Partner and shipping times may vary.
Customers must read Compliance Information before purchasing.

Product Details


  • Weight: 6.6 oz. (stripped)
  • Material: CNC Machined from U.S.A. sourced 7075-T6 plate aluminum
  • Finish: Bead blasted and Hard Coat Anodized Black (Type III, Class2)


2A Armament Gen 2 Balios Lite receivers are an updated version of its staple product refined to improve the shooter’s experience. The Gen 2 maintains the same features and light weight of its predecessor with a more ergonomically designed integral trigger guard, different picatinny rail pockets design for durability, blended pocket transitions for other manufacturer’s handguards. The Aethon and Balios lite receiver sets are designed to aesthetically match each other for easy customization.


• Flared Mag Well

• Threaded Bolt Catch Pin

• Set Screw Captive Detent Springs

• Rear Tensioning Screw

• Pocketed design reduces weight, and enhances appearance

• Can be interchanged with third party, Balios Lite, or Aethon uppers


Q & A


Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.