Tacfire 5.56x45mm 10" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - MADE IN THE USA - BU-556-10

Upgrade your AR-15 build with this brand-new Tacfire complete upper receiver, made in the USA. Chambered in 5.56x45mm with a 10" threaded barrel (1:7 twist), it comes complete with a Bolt Carrier Group, Charging Handle, and an M-LOK Handguard for optimal accessory mounting. Designed specifically for AR-15 platforms, this upper receiver delivers precision, durability, and ease of installation for your next build.