• AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver
  • AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver
  • AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver
  • AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver
  • AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver
  • AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver

AR-15 Complete Build Kit - DIY Rifle Assembly - 80 Percent Lower - Complete Upper Receiver

$599.99

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We offer standard, 3 day express, 2 day express, and overnight express shipping options for your convenience. If you place your order Monday - Friday by 2:00 PM EST using one of our express shipping options, your order will be processed and shipped the same day it is placed!

Applies to delivery within the 48 contiguous states only.
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52 BK5394K is backordered and is expected by: TBA


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  • Polymer80 80% lower receiver and jig kit
  • AIMS Upper Receiver 15" M-LOK free floating rail, 16" 5.56 barrel
  • 4 x 32 AIMS Rifle Scope
  • UTG 30-rd. windowed AR-15 magazine
  • 6-position adjustable butt stock
  • AR armorer's wrench
  • Complete lower parts kit


You could go out and buy an AR-15 under most normal circumstances, but that wouldn’t be any fun. We have put together an AR-15 build kit for you to build at home, and there’s no FFL required! Our kit uses 80% polymer receivers that are only 80% complete. This means that you will have to do some machining on the lower receiver to complete it. But, our kit comes with the jig and drill bits to finish the lower, and you only need a hand drill in order to perform the machining; then you are ready to assemble your AR-15. The kit includes the complete upper receiver, 30-rd. windowed magazine, a 6-position butt stock, a lower parts kit, a 4x32 MIL-DOT scope and an AR Armorer’s wrench. Aside from a few other basic hand tools, the only thing else you will need is ammo! The upper receiver is a 16” 5.56 barrel with a 15” M-LOK free floating rail, a flash suppressor is also included.

52 BK5394K


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