AR-15 5.56 Nato 16" Rifle Build Kit (Unassembled) -BLK
Sale

AR-15 5.56 Nato 16" Rifle Build Kit (Unassembled) -BLK

Shooters Gate
SKU:
AR-BDKT-U556-167HC-M15-BLK-1
$498.30 $299.00
(35 reviews)
Weight:
7.00 LBS
Current Stock:
107
Maximum Purchase:
3 units
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Description
- OVERVIEW -
This Shooters Gate AR-15 Build Kit provides a solid Mil-Spec foundation for a dependable 5.56 NATO build. It includes a Stripped upper receiver, a 16“ 5.56 NATO barrel with a gas system (twist varies depending on the barrel), and a Black 15“ free-float M-LOK handguard for stability and accessory mounting.

The kit also features a Bolt Carrier Group, made in the USA, standard charging handle, complete lower parts kit, and a Mil-Spec buffer tube assembly. Only a stripped lower receiver and magazine are required to complete the build.
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Upper Assembly

Upper Receiver
Stripped upper receiver
Barrel
16“ 5.56 NATO barrel
(twist varies depending on the barrel)
Dust Cover & Forward Assist
  • Black dust cover
  • Black forward assist
Gas System
  • Gas Block (diameter varies depending on the barrel)
  • Gas Tube (length varies depending on the barrel)
Muzzle Device
A2 Bird Cage Flash Hider with crush washer
Handguard
Black M-LOK Free Float Handguard
For 16“ Uppers there will be a 15“ handguard
BCG & Charging Handle
  • Bolt Carrier Group, made in the USA
  • Black standard charging handle

Buffer System

Included Parts
Mil-Spec Stock Mil Spec Buffer Tube Buffer Spring Buffer Castle Nut End Plate

Lower Parts Kit

Included Parts
Safety Selector Safety Detent Safety Detent Spring Trigger Guard Trigger Guard Roll Pin Pistol Grip Washer Pistol Grip Screw Buffer Retainer Retaining Spring Mag Release Mag Release Button Mag Release Spring Takedown Pins (x2) Takedown Springs (x2) Takedown Detents (x2) Hammer Spring Hammer Pin Trigger Spring Trigger Pin Bolt Catch Bolt Catch Plunger Bolt Catch Spring Bolt Catch Roll Pin Disconnector Disconnector Spring Trigger Guard Screws Trigger Hammer AR-15 Pistol Grip

To Complete Your Build

What You Still Need
  • AR-15 Stripped Lower Receiver (FFL & Background Check required)
  • Magazine suitable for your desired caliber
⚠ WARNING: This product can expose you to chemicals such as lead and other petroleum products which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov

Reviews

  • 5
    Fast shipping, no complaints at all

    Posted by Yohan on Dec 24th 2025

    Shipping was much faster than expected and everything arrived well packaged.

  • 5
    like it

    Posted by dale devries on Dec 15th 2025

    I assembled this kit to a double star lower. all the components fit perfectly.

  • 5
    AR 15 BUILD KIT

    Posted by Jackie on Dec 15th 2025

    This kid is 100% amazing. Every part was there well-made went together with ease. This was my first build. After I test fired it I fell in love with it even more. Looking to build your first AR this is what you need.

  • 5
    Love it

    Posted by Emil on Dec 9th 2025

    This is a budget build. Zero issues, I love it.

  • 5
    Great kit

    Posted by Wilson on Dec 9th 2025

    Great kit for the money and very easy to build!

  • 5
    well done

    Posted by Phil on Dec 9th 2025

    My friend and I got these kits. We tested out my friend’s build on an Aero Precision lower yesterday, and not only is the kit REALLY well done, but the thing functions flawlessly.

  • 5
    Great buy!

    Posted by Dennis on Dec 4th 2025

    Great kit! Super glad I went with this build kit and added my own lower. Definitely a great buy if you’re on a budget!

  • 5
    I loved the the upper

    Posted by Syed on Dec 4th 2025

    Very nice Kit, ran flawlessly

  • 5
    Good

    Posted by Phil on Dec 3rd 2025

    Great kit, all parts fit in flawlessly. Was not disappointed with the parts they sent. Great price.