Description
M4 Flat Top Anodized Upper Receiver – (Only Upper is BLEM) – Combo with Complete 5.56 Polished Black Nitride BCG
***Limited Blemished Batch*100% Functional***
Upper Receiver:
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.
Bolt Carrier Group:
- Enhanced 9310 Steel (Bolt)
- 8620 Tool Steel (Carrier)
- Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
- Tool Steel Extractor
- Shrouded Firing Pin
- Mil-Spec Gas Key (4130 Steel) attached with Grade 8 hardware and Properly staked
- Caliber: .223 / 5.56 / 300 Blackout
- Bolt is shot Peened and MPI
- All BCG components are pre-polished before being processed and then post polished for an incredible shine
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.
See reference “CHART A” and “CHART B” tabs above.
PORT DOOR GRAPHIC ENGRAVING REFERENCE CHART
THESE ENGRAVED PORT DOORS COME WITH ALL HARDWARE NEEDED FOR THE PORT DOOR AND FORWARD ASSIST
EXAMPLE
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