M4 Flat Top Anodized Upper Receiver - BLEM - Stripped
***Limited Blemished Batch * 100% Functional***
Machined from 7075 T6 forgings, this upper receiver features a mil-std 1913 rail for mounting optics and accessories and has M4 feed ramps.
- Machined from a Mil-Spec 7075 T6 forcing hard Coat Anodized per Mil-A-8625F, Type III
- M4 Feed ramps
- Made in the U.S.A
These uppers are Cosmetically Blemished. The metal under the port door opening has surface imperfections rendering these cosmetically blemished.
Add a RTB M-LOK Handguard?
Add a plain or engraved port door + forward assist kit from the drop-down menu.
Choose one of our upper engraving graphics from the drop-down menu.