KAK Barreled AR-15 Upper Receiver - 5.56 NATO - 11.5"
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KAK Industry
Overview
The KAK Barreled AR-15 Upper Receiver is a complete assembly designed for the AR-15 platform, featuring an 11.5-inch barrel chambered in 5.56 NATO. This upper utilizes a carbine-length gas system, which is ideal for balancing reliability and recoil management in shorter configurations. Builders often incorporate this upper in compact and maneuverable setups, making it a popular choice for tactical applications and close-quarters engagements.
Specifications
August 2026 on GunPartPicker
KAK Barreled AR-15 Upper Receiver - 5.56 NATO - 11.5" ranked #291 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #373 of the 1,632 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $279.72 at Primary Arms for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 17 builds that include this one
Ke Arms Ke-15 Forged Mil-Spec Complete Lower Receiver 5.56mm
Aero Precision AR-15 5.56 BCG W/C158 Bolt - Aero Logo - Phosphate
Battle Arms Development Rack Ambidextrous AR-15 Charging Handle - Mod C
Magpul AFG-2 Angled Fore Grip - Black
Colt Trigger & Disconnect Spring Assembly
Holosun HE509T Green Dot Sight With Shake Awake, Black - HE509T-GR
Builds Featuring This Part
See all 2 →Builds in the community that include the Kak Barreled Ar-15 Upper Receiver - 5.56 Nato - 11.5"
| Build | Parts | Total |
|---|---|---|
 | 25 | $840.05 |
 | 16 | $573.88 |
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