Sale!

MSF 16” 5.56/.223 Rifle Kit

Original price was: $549.00.Current price is: $399.00.

-27%

Choose your components in this build kit to complete your AR-15!

Upper Options

Customize your upper receiver using the options below

Style

(+$109.99)

Free Shirt with build kit purchase?

Free Retro-Rifle Shirt With Purchase of Ar15 Build Kit or rifle
Free Retro-Rifle Shirt With Purchase of Ar15 Build Kit or rifle

Barrel Options

Charging Handle Options

(+$20.00)
(+$68.00)
(+$125.00 $99.00)
(+$79.99)
(+$94.95)
(+$79.95)
(+$79.99)
(+$45.00)
(+$45.00)
(+$69.99)
(+$69.99)
(+$69.99)

Handguard Options

(+$35.00)
(+$35.00)
(+$35.00)
(+$25.00)
(+$59.00)
(+$59.00)

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)
(+$12.95)
(+$12.95)
(+$17.95)

Lower Options

Customize your lower receiver using the options below

Stock Options

M4 Stock, Standard Ar15 Carbine stock for mil spec buffer tube
M4 Stock, Standard Ar15 Carbine stock for mil spec buffer tube
MOE® SL-K® Carbine Stock – Mil-Spec
MOE® SL-K® Carbine Stock – Mil-Spec $39.00
Rogers Super-Stoc - Mil Spec Adjustable Rifle Stock
Rogers Super-Stoc - Mil Spec Adjustable Rifle Stock $49.00
L 7 slim lightweight minimalist milspec AR15 stock
L 7 slim lightweight minimalist milspec AR15 stock $29.00
A2 rifle m16 / ar15 buffer tube kit with spring and buffer
A2 rifle m16 / ar15 buffer tube kit with spring and buffer $41.60

Pistol Grip Options

m4 / ar15 / m16 polymer pistol grip
m4 / ar15 / m16 polymer pistol grip
Magpul MOE® Grip – AR15/M4 , black
Magpul MOE® Grip – AR15/M4 , black $19.95
MOE-K2® Grip – AR15/M4 - Magpul FDE
MOE-K2® Grip – AR15/M4 - Magpul FDE $20.95
17 Degree Pistol Grippy Grip - AR15
17 Degree Pistol Grippy Grip - AR15 $9.95
Key100 Rubberized Polymer Ar15 pistol grip, black
Key100 Rubberized Polymer Ar15 pistol grip, black $9.99
Key101 Ar textured pistol grip
Key101 Ar textured pistol grip $9.99

Takedown/Pivot Pins

Trigger/Hammer Pins

Safety Selector

End Plate

Trigger

Add-ons

Custom Dust Cover Engraving

Foregrip Options

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

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)

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.

Slings

Tools / Extras

(+$8.00)
(+$9.99)
(+$9.99)
(+$5.99)
(+$3.99)
Product price: $399.00
Order total:
Free shipping on all orders over $350
MSF 16” 5.56/.223 Rifle Kit
MSF 16” 5.56/.223 Rifle Kit $549.00 Original price was: $549.00.$399.00Current price is: $399.00.

This AR 15 gun kit includes everything you need to complete your stripped lower into a functioning firearm.  The upper will be fully assembled and test-fired.  The lower components can easily be assembled into your receiver.  Use the takedown pins to attach the two components, and you are good to go!  Be sure to scroll through the options and select parts to best fit your needs and make your weapon unique.

Key Features:

  • Barrel: 16-inch 4150 CMV barrel with a .223 Wylde chamber, accommodating both 5.56 NATO and .223 Remington ammunition.
  • Receiver: Mil-Spec 7075-T6 aluminum receiver with M4 feed ramps for reliable feeding.
  • Gas System: Carbine-length gas system paired with a .750 gas block ensures optimal cycling.
  • Handguard: 10-inch free-float handguard, available in various M-LOK and quad rail designs, for accessory attachment.

This build kit offers the flexibility to customize your rifle to your specific preferences, whether for target shooting or tactical applications. Experience the satisfaction of building your own AR-15 with components designed for performance and reliability.

Additional information

Weight 6 lbs
Barrel Size

16"

Caliber

5.56/.223

Style

Rifle

4.9
Based on 15 reviews
5 star
87
87%
4 star
13
13%
3 star
0%
2 star
0%
1 star
0%
1-5 of 15 reviews
  1. H

    Turns heads at my MD range. Confidence in your hands – One of the best AR u can buy as a MD resident without paying for LWRC or G$. I was hesitant at first, but after owning it for 2 years, I can say I never had a single malfunction. I had guns that I don’t feel confident with, as in is wobbly, screws strip, or uses chinesium. This build combined with a AERO lower just is rock sturdy, and I know if I were to take it into a war zone, I will have a companion that won’t let me down. Also, the most important factor is that with MSF you have full customer support. You are not talking with some lady who sits at a customer desk all day, but rather the people who builds these. I will be buying more from them.

  2. D

    So Far So Goo – I have not yet been able to test fire this rifle yet. I did have a fit issue with the receiver lock plate. I had to grind down the top so that the charging handle would clear it to allow for function of bolt-carrier group. Otherwise this was nice and shipped very fast. I think Mid State Firearms is FIRST CLASS and a fantastic business!! I will certainly shop with them again.

  3. ED

    Edit Previous Review – The previous review posted as one star was supposed to be five stars. I would give 10 stars if I could—these guys rock!

  4. ED

    Love these guys.

  5. BS

    First kit purchase and can’t complain! – Went with MidState as they were the best lefty kit I could find with options in the kit. Overall the kit was perfect. Had a minor issue getting the fire control group installed but once I got it together I was shooting good groups “out of the box”. Definitely recommend MidState to anyone!