KAK Complete AR-15 Upper Receiver - 5.56 NATO - 11.5"
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KAK Industry
Overview
The KAK Complete AR-15 Upper Receiver is a fully assembled unit designed for the AR-15 platform, featuring an 11.5-inch barrel chambered in 5.56 NATO. This upper receiver allows for easy installation on your lower receiver, providing a compact option ideal for maneuverability while maintaining effective performance with the popular 5.56 NATO caliber. You'll commonly find this upper in builds focused on shorter configurations, making it a solid choice for tactical setups or close-quarters engagements.
Specifications
Build history on GunPartPicker
Builders have been adding the KAK Complete AR-15 Upper Receiver - 5.56 NATO - 11.5" to their builds on GunPartPicker since February 2026. All time, it ranks #380 of the 1,654 upper receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $382.46 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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