MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly



Complete your upper

Add a bolt carrier group and charging handle to complete your upper.


Charging Handle Options

Customize your upper

Handguard Options

Barrel Options

Gas Block


Muzzle Device Options

Foregrip Options

Optic Options

Light Options

Dust Cover Engraving

Product price: $299.00
Order total:

Free shipping on all orders over $500

  • Live inventory and ready to ship
  • Questions? Text us at (601) 720-8252

Start your 12.5″ Ar15 Pistol build with this properly assembled Ar-15 upper. Features:

  • 12.5″ 4150 CMV Nitride Ar15 barrel.
  • 1/2-28 threads.
  • Carbine gas system.
  • .750 Steel low profile gas block.
  • Free Float M-LOK Handguard.
  • 7075-t6 Mil Spec Aluminum Upper Receiver, Anodized black.
  • Dust cover and forward assist installed.

Uppers are custom built to order, professionally assembled and quality checked. Make it a complete upper ready to pin to your AR lower by adding BCG and charging handle. If you order an optional bolt carrier group and charging handle with it, we will check headspace and test fire with them as well.

Additional information

Weight 4 lbs
Dimensions 26 × 4 × 4 in
Barrel Size