5.56 / .223 Wylde

5.56/223 Upper Receiver Assemblies for AR-15. Virtually all of our uppers for sale have the parts in stock and are built to order by us. We check headspace and test fire complete AR-15 upper assemblies when ordered with bcg and charging handle. .223 Wylde uppers will shoot both 5.56 Nato and .223 Rem ammo. Choose us for your next custom Ar15 build and we’ll deliver an exceptional product at a great price.