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MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly

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.

Style *

Charging Handle Options

(+$15.00)
(+$25.00 $19.99)
(+$75.00)
(+$125.00 $99.00)
(+$79.99)
(+$94.95)
(+$79.95)
(+$45.00)
(+$79.95)
(+$45.00)
(+$79.99)
(+$45.00)
(+$79.99)
(+$79.99)

Gas blocking charging handle

Customize your upper

Handguard Options

(+$35.00)
(+$35.00)
(+$35.00)
(+$49.00)
(+$49.00)

Gas Block Options

(+$89.99)

Barrel Options

Pin/Weld Muzzle Device?

Muzzle Device Options

(+$30.00)
(+$35.00)
(+$35.00)
(+$75.00)
(+$75.00)
(+$35.00)
(+$60.00)
(+$94.00)

Fits Specwar, Saker, Hybrid, Omega, Harvester ASR Mounting System

(+$169.00)
(+$115.00)
(+$169.00)
(+$169.00)

Suppressor Adapter

(+$94.00)
(+$34.99)
(+$34.99)
(+$65.00)
(+$65.00)

Custom Dust Cover Engraving

Foregrip Options

(+$20.00)
(+$33.00)
(+$33.00)
(+$20.00)

Sights / Optics

(+$25.00)
(+$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)

Lower Parts ?

Ar15 Standard Lower Parts Kit LPK
Ar15 Standard Lower Parts Kit LPK $49.99
Velocity 3lb Enhanced AR-15 Lower Parts Kit LPK
Velocity 3lb Enhanced AR-15 Lower Parts Kit LPK $199.00
Ar15 Mil Spec Carbine Buffer Tube Kit
Ar15 Mil Spec Carbine Buffer Tube Kit $39.99
ELF Match Trigger -Adjustable AR Trigger by Elftmann Tactical
ELF Match Trigger -Adjustable AR Trigger by Elftmann Tactical $249.00
ELF Match Trigger -Adjustable AR Trigger by Elftmann Tactical
ELF Match Trigger -Adjustable AR Trigger by Elftmann Tactical $249.00
3lb Velocity Ar15 Drop in Trigger
3lb Velocity Ar15 Drop in Trigger $169.99

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)
Product price: $299.00
Order total:
Free shipping on all orders over $500

The MSF 12.5″ Carbine-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.
  • 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.

Key Features:

  • Barrel: 12.5-inch 4150 CMV Nitride barrel with carbine-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