Aero Precision Assembled XL .458 SOCOM / 450 Bushmaster / Big Bore UpperForged from 7075 T6 aluminum, the .458 SOCOM Assembled Upper Receiver is precision-machined to M16/M4 specification and features M4 feedramps. This unit comes assembled with a port door and forward assist.
These upper recivers have been known to work with CMMG Radial Delayed Blowback 9mm custom builds.
- Port door opening has been enlarged to fit .458 SOCOM and other similar rounds (.450 Bushmaster, .50 Beowulf, etc.)
- Features custom .458 SOCOM markings
- M4 Feedramps
- .250 takedown pin holes
- Lazer engraved T-marks
- Forward assist and ejection port door installed
- .458 SOCOM Stripped Upper Receiver in Anodized Black
See reference "CHART A" and "CHART B" tabs above.
- Maximum Purchase:
- 5 units