Custom AR 15 Build Kits for Sale | AR15 Building Kit

Showing all 31 results

-27%

MSF 16” 5.56/.223 Rifle Build Kit

2 reviews
$399.00
-27%

MSF 16” 300 Blackout Ar-15 Rifle Build Kit

$399.00
-8%

MSF 14.5” Pin/weld 5.56/.223 Rifle Build Kit

$549.00
-9%

MSF 10.5” 5.56/.223 Pistol Build Kit

$499.00
-9%

MSF 12.5” 5.56/.223 Pistol Build Kit

$499.00
-9%

MSF 7” 9mm Pistol Build Kit

$499.00
-9%

MSF 11.5” 5.56/.223 Pistol Build Kit

$499.00
-9%

MSF 14.5” 5.56/.223 Pistol Build Kit

$499.00
MSF 18” 5.56/.223 Rifle Build Kit

$549.00
MSF 20” 5.56/.223 Rifle Build Kit

$549.00
-9%

MSF 10.5” 300 Blackout Pistol Build Kit

$499.00
-9%

MSF 16” 9mm Rifle Build Kit

$499.00
-13%

MSF 16” 6.5 Grendel Rifle Build Kit

$524.00
-8%

MSF 16” .458 Socom Rifle Build Kit

$549.00
-8%

MSF 16” 12.7×42 Rifle Build Kit

$549.00
-9%

MSF 7.5” 5.56/.223 Pistol Build Kit

$499.00
-9%

MSF 8.5” 5.56/.223 Pistol Build Kit

$499.00
-9%

MSF 7.5” 300 Blackout Pistol Build Kit

$499.00
-9%

MSF 8.5” 300 Blackout Pistol Build Kit

$499.00
-9%

MSF 3” 9mm Pistol Build Kit

$499.00
-9%

MSF 5” 9mm Pistol Build Kit

$499.00
-9%

MSF 10” 9mm Pistol Build Kit

$499.00
-3%

MSF 18” 6.5 Grendel Rifle Build Kit

$579.00
-8%

MSF 16” .450 Bushmaster Rifle Build Kit

$549.00
-8%

MSF 18” .450 Bushmaster Rifle Build Kit

$589.00
-8%

MSF 16” .350 Legend Rifle Build Kit

$549.00
-9%

MSF 7.5″ 7.62x39mm Pistol Build Kit

$524.00
-9%

MSF 10.5″ 7.62x39mm Pistol Build Kit

$524.00
-9%

MSF 16″ 7.62x39mm Rifle Build Kit

$524.00
-40%

*Rifle Build Kit* Ar15 Rifle Kit with MLok, free Spiritus Sling

$499.10
-33%

*PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & Nickel BCG

3 reviews
$899.00

Showing all 31 results

Our custom AR 15 Build kits for sale include what you need to finish your stripped Ar lower. You’ll need a complete upper (with bolt carrier group, or bcg, and charging handle), a lower parts kit (lpk) and a stock kit. The stock kit and lpk together is also known as a ‘lower build kit’. With our AR-15 build kits, the upper is already assembled which saves you a few steps.

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