(0) 
Newsletter
Product no.: 430108373
Mfr. No.: NONE
050806024366 Complete any type of AR-15 Upper Receiver with these Completion Kits! Whether you have an old school retro slickside carry handle upper or a modern M4 flat top, one of these kits is the solution to complete your build. Each kit is specifically composed to include parts that are correct for a particular receiver, and no unecessary extras. Available in the following configurations: M16 Slickside - Meant for early M16 carry handle upper receivers without a forward assist and using an A1 rear sight assembly. Includes proper A1 ejection port cover. M16A1/C7 - Intended for later M16A1 and Canadian C7 type receivers, with a teardrop forward assist and an A1 rear sight assembly. Includes proper A1 ejection port cover. M16A2 - For use with the 1980s classic A2 carry handle upper receiver, with round forward assist and A1 rear sight assembly. Includes an A2 ejection port cover. M4 - Use on any flattop upper with a forward assist. Includes round forward assist and A2 ejection port cover. No sight assembly included.Out of stock. No ETA.
Brownells offers an extensive range of AR-15 Upper Receiver Completion Kits designed to help you finish your build with ease and accuracy. Whether you prefer a classic retro style or a modern flat top, we have the right kit for you.
Each kit is carefully composed to include only the necessary parts specific to your receiver, ensuring a seamless assembly process without unnecessary extras. Elevate your firearm with our reliable and high-quality completion kits!
We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.
to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.
Whether you're looking to maintain, repair, or upgrade, we've got what you need!
For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.
Massive Selection
From the essentials to the unique, find everything under one roof.
Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.
Browse our collection and discover why we're the trusted name in shooting sports & hunting.
© 2025 Brownells UK
Part of the Brownells Europe Group
Classical view
Mobile view
Help and contact
