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Big Bore Ar15 450 bushmaster / 458 socom / 50 etc enlarged port Large Caliber Stripped upper

Original price was: $71.43.Current price is: $49.99.

-30%

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.

Tools / Extras

(+$8.00)
(+$9.99)
(+$9.99)
(+$5.99)
(+$3.99)
Product price: $49.99
Order total:
Free shipping on all orders over $350
Big Bore Ar15 450 bushmaster / 458 socom / 50 etc enlarged port Large Caliber Stripped upper
Big Bore Ar15 450 bushmaster / 458 socom / 50 etc enlarged port Large Caliber Stripped upper $71.43 Original price was: $71.43.$49.99Current price is: $49.99.

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

5.0
Based on 2 reviews
5 star
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1-2 of 2 reviews
  1. KL

    Nice upper – Ordered 3 and they all came in great condition!!!!

  2. C

    sound of freedom – This was a great set up. I loved being able to customize the set up. Only issue I had was my own fault as a newb to building these. I used a heavy barrel in a slim hand guard. It makes adding attachments tough with clearances. Hoping someday to also get an AR10 from here.