Big Bore AR-15 upper with enlarged ejection port for your ar15. Uses standard door and forward assist. The enlarged ejection port is nice for 450 bushmaster, 450 socom, 500 s&w, 50 beowulf, and other larger caliber casings.
Load more images
Sale!
Big Bore Ar15 450 bushmaster / 458 socom / 50 etc enlarged port Large Caliber Stripped upper
$69.00
-3%Big Bore AR-15 upper with enlarged ejection port for your ar15. Uses standard door and forward assist. The enlarged ejection port is nice for 450 bushmaster, 450 socom, 500 s&w, 50 beowulf, and other larger caliber casings.
Additional information
| Weight | 0.6 lbs |
|---|---|
| Dimensions | 9.0 × 6.0 × 6.0 in |
| Caliber | .450 Bushmaster, .458 Socom, .350 Legend, 12.7×42 |
-300x300.png "images - Mid State Firearms")
