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MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly 1:7 mid length

Original price was: $349.00.Current price is: $299.00.

-14%

Complete your upper

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

Select Right or Left Handed *

left handed slilck side ar15 upper
(+$59.99)

Charging Handle Options

(+$15.00)
(+$25.00 $19.99)
cheap ambi charging handle
(+$19.99)
(+$125.00 $99.00)
(+$79.99)
(+$94.95)
(+$79.95)
(+$45.00)
(+$79.95)
(+$45.00)
(+$45.00)
(+$79.99)
(+$45.00)
(+$79.99)
(+$79.99)

Gas blocking charging handle

Customize your upper

Gas Block Options

(+$89.99)

Pin/Weld Muzzle Device?

Custom Dust Cover Engraving

Foregrip Options

(+$23.00 $21.00)
(+$33.00)
(+$33.00)
(+$23.00 $21.00)

Sights / Optics

(+$25.00)
45 degree poly sights
(+$39.00)
(+$125.00)
(+$149.00)
(+$577.00 $499.00)
(+$249.00 $179.00)
(+$211.00 $159.00)

Light Options

Arisaka 300 Series with Malkoff E1HT Head and Momentary Tailcap
Arisaka 300 Series with Malkoff E1HT Head and Momentary Tailcap $185.00

Folding Adapter

(+$199.00)

Silencer Use?

Do you plan to use a silencer?

Make sure the threads clear the rail, contact me if any issue.

Make sure barrel threads clear rail, and leave muzzle device loose.

We will build as designed and tighten muzzle device.

Tools / Extras

(+$8.00)
(+$9.99)
(+$9.99)
(+$5.99)
(+$3.99)
(+$19.99)
(+$24.99)
Product price: $299.00
Order total:
Free shipping on all orders over $350
MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly 1:7 mid length
MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly 1:7 mid length $349.00 Original price was: $349.00.$299.00Current price is: $299.00.
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The MSF 12.5″ mid-Length 223 Wylde Upper Receiver offers a compact yet effective solution for AR-15 enthusiasts. Its shorter barrel enhances maneuverability, making it suitable for close-quarters applications without compromising performance.

  • 12.5″ 4150 CMV Nitride Ar15 barrel.
  • 1/2-28 threads.
  • mid length 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.

Key Features:

  • Barrel: 12.5-inch 4150 CMV Nitride barrel with mid-length gas system, ensuring reliability and optimal cycling.
  • Caliber: Chambered in 5.56 NATO, also compatible with .223 Remington ammunition.
  • Handguard: Free-float M-LOK handguard, providing a lightweight platform for accessory attachment.
  • Receiver: 7075-T6 Mil-Spec aluminum upper receiver, anodized black with M4 feed ramps.

This upper receiver is perfect for building a compact AR-15 pistol or short-barreled rifle, offering versatility and performance in a smaller package. Customize it to your preferences and enjoy a reliable addition to your firearm collection.

Additional information

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

12.5"

Caliber

5.56/.223

Style

Pistol

5.0
Based on 1 review
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1-1 of 1 review
  1. C

    sound of freedom – This was a great set up. I loved being able to customize the set up. Only issue I had was my own fault as a newb to building these. I used a heavy barrel in a slim hand guard. It makes adding attachments tough with clearances. Hoping someday to also get an AR10 from here.