The KAK AR-15 Upper Completion Kit (brand part no. KAR-KT-18) supplies the small hardware commonly needed to finish assembling an AR-15 upper receiver. KAK Industry was founded and incorporated in 2011 by Kurt Kosman to address a gap in the market for quality, American-made AR components at affordable, sustainable prices. A completion kit like this saves a builder from tracking down individual small parts and hardware separately, which is easy to overlook when planning out a full upper build. It is a practical, low-cost addition to a parts order for anyone assembling an AR-15 upper from individual components.

Key Specifications

• Supplies small completion hardware commonly needed to finish an AR-15 upper build.
• Sold as a dedicated Upper Completion Kit, distinct from a lower parts kit.

Frequently Asked Questions

What is an upper completion kit used for? It supplies the small hardware commonly needed to finish assembling an AR-15 upper receiver during a build.

Does this kit include the barrel or bolt carrier group? No, this kit covers small completion hardware only; the barrel and bolt carrier group are sold separately.

Buy the KAK AR-15 Upper Completion Kit

Cross the small hardware off your parts list for an AR-15 upper build in one order. Browse Schaefer Defense’s AR upper parts selection and order from our Lubbock, Texas gun shop for fast shipping.