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MSF 18” 5.56/.223 Upper Receiver Assembly

Original price was: $379.00.Current price is: $349.00.

-8%

Upgrade your AR15 with this .223 Wylde stainless fluted 1/8 twist 18-inch upper. Assembled and ready to drop on your lower, just add bcg and charging handle.

Complete your upper

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

Style *

(+$59.99)

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)
(+$25.00)
(+$59.00)
(+$59.00)

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)

Handguard Options

(+$35.00)
(+$35.00)
(+$35.00)
(+$25.00)

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: $349.00
Order total:
Free shipping on all orders over $500
MSF 18” 5.56/.223 Upper Receiver Assembly
MSF 18” 5.56/.223 Upper Receiver Assembly $379.00 Original price was: $379.00.$349.00Current price is: $349.00.

Upgrade your AR-15 with the MSF 18″ Mid-Length 5.56 NATO Upper Receiver. This complete upper is designed for shooters seeking enhanced accuracy and reliability.

Key Features:

  • Barrel: 18-inch 223 Wylde (5.56/.223) barrel with a mid-length gas system
  • Handguard: Options include various M-LOK designs for accessory attachment
  • Receiver: Mil-Spec upper receiver with M4 feed ramps
  • Muzzle Device: Standard A2 flash hider

The 18-inch upper receiver is assembled and ready to install on your lower receiver. Just add a bolt carrier group and charging handle to complete your build. Whether you’re upgrading an existing rifle or starting a new build, the MSF 18″ Mid-Length 5.56 NATO Upper Receiver Group offers the performance and quality you need.

Additional information

Weight 5 lbs
Dimensions 36 × 4 × 4 in
Barrel Size

18"

Caliber

5.56/.223

Style

Rifle