.300 Blackout Pistol Kit Assembly 7.5″Phosphate Barrel 7″Quad Rail

(1 customer review)



.300 Blackout Pistol Kit Assembly 7.5″Phosphate Barrel 7″Quad Rail


(1 customer review)

Out of stock

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This is a AR-15 Black Pistol Kit 7.5″ Phosphate Barrel, 7″Quad Rail w 80% Lower Receiver. This .300blk Pistol Kit is perfect build for a  gunsmith.

  • AR-15 Upper Receiver
  • 7.5″ .300blk Barrel
  • 7″ Quad rail Handguard
  •  Flash Hider
  • 5.56 Bolt Carrier Group
  • Mil-Spec Charging Handle
  • Dust cover + Forward assist
  • 80% Lower Receiver
  • AR-15 Lower Parts Kit
  • AR-15 Pistol Buffer Assembly

Where Can’t we ship? : Shipping to  New Jersey, New York, Hawaii, Connecticut, Rhode Island and Washington D.C. is not possible due to state regulations against 80% lowers.



 NOTE: If you have any questions or concerns our world-class customer support is here for you. Please give us a call, email us or message our live support chat.
If you are looking to purchase more than one. The bulk option is available at: 80% Lower Bulk Receivers (5-Pack) – Black

No FFL Required! This  product listing is an 80% lower, meaning that it is not a firearm, and therefore requires no FFL transfer in order to be shipped.

If no “Add to Cart” button is visible, it means we do not have any stock of this product. Keep checking back to see if the item is in stock, or join the waiting list for this product and be notified via email when the product comes back in stock!  This option is only available for members with valid emails!

Here at AR-15 Site, strive to give our customers the highest quality 80% lower AR-15 and polymer 80 parts on the market! Give us a call or visit our support with any products you might be having trouble with. Any reviews we receive on our  80% Lower products will be taken into account with great care.


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Additional information

Weight 10 lbs

1 review for .300 Blackout Pistol Kit Assembly 7.5″Phosphate Barrel 7″Quad Rail

  1. Ron

    Good delivery, happy with the product!

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