DoubleStar AR-15 Stripped Flattop Upper Receiver AR221M

The DoubleStar flattop upper receiver is made from 7075 T6 aluminum and hard coat anodized to mil spec. This receiver features M-4 feedramps. Note: DO NOT use a barrel with rifle feedramps with this upper receiver. It will create a ridge causing feed problems.!

Specifcations and Features:
Upper Receiver Type: Flattop
Upper Receiver Material: Forged Aircraft 7075 T6 Aluminum
Upper Receiver Features: Brass Deflector, M4 Feed Ramps, "T" Marks
Upper Receiver Coating: Anodized to Mil-Spec
Made in the USA

Fits:

AR-15 lower receivers/barrels