AR-15 Build Kits
Choose from a wide variety of calibers, barrel lengths, and handguard styles to create a rifle build kit that fits your shooting style — tactical, hunting, competitive, or recreational. With top-tier parts, unbeatable pricing, and no FFL required, building your own AR-15 has never been easier or more rewarding.
Your rifle. Your rules. Build it your way.
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AR-15 Alpha Stock Ambi Mil Spec Lower Parts Build Kit
$125.99A1Armory AR-15 Lower Build Kit - Alpha- Stock This AR15 Lower Parts Build Kit comes with a complete LPK and a Mil-Spec Alpha Stock Kit. This lower build kit comes with everything that you need to complete your 80 percent lower other than the lower...$125.99 -
On Sale
AR-15 Cobra Stock MK2 Ambi Mil Spec Lower Parts Build Kit
Now: $125.99Was: $159.99A1Armory AR-15 Lower Build Kit - Cobra MK2- Stock This AR15 Lower Parts Build Kit comes with a complete LPK and a Mil-Spec Cobra MK2 Stock Kit. This lower build kit comes with everything that you need to complete your 80 percent lower other than...Now: $125.99Was: $159.99 -
AR-15 Alpha Stock MK2 Ambi Mil Spec Lower Parts Build Kit
$125.99Trinity Force Alpha MK2- Stock AR-15 Lower Build Kit - This AR15 Lower Parts Build Kit comes with a complete LPK and a Mil-Spec Alpha MK2 Stock Kit. This lower build kit comes with everything that you need to complete your 80 percent lower other...$125.99 -
AR-15 Omega Stock Ambi Mil Spec Lower Parts Build Kit
$116.99AR-15 Omega Lower Parts Build Kit-FREE SHIPPING Upgrade or complete your AR-15 build with precision-engineered components you can trust. The Omega Lower Parts Build Kit is crafted with high-quality materials and proudly made in the USA,...$116.99 -
On Sale
AR-15 Lower Parts Build Kit Flat Dark Earth Magpul MOE Stock
Now: $125.99Was: $189.99Flat Dark Earth RTB Lower Parts Build Kit -MAGPUL MOE Minimalist Stock --FREE SHIPPING! This FDE AR Lower Parts Build Kit comes with our True Mil-Spec Trigger Assembly along with a Flat Dark Earth Magpul MOE Stock and is perfect for...Now: $125.99Was: $189.99 -
AR-15 Lower Parts Build Kit Flat Dark Earth Minimalist Stock
$170.99RTB Lower Parts Build Kit - Mission First Minimalist Stock - FLAT DARK EARTH FREE SHIPPING! This Right To Bear FDE AR Lower Parts Build Kit comes with our True Mil-Spec Trigger Assembly along with an Flat Dark...$170.99 -
AR-15 16" .450 Bushmaster Side Charging Complete Upper Assembly
$292.4916" .450 Bushmaster Side Charging Upper Assembly w 15" Handguard- FREE SHIPPING! Title: AR-15 16" .450 Bushmaster Side Charging Complete Upper Assembly Description: Upgrade your AR-15 platform with the...$292.49 -
16" .223 Wylde Stainless M4 Carbine Side Charging Upper
$260.0916" .223 Wylde Stainless M4 Barrel Carbine Side Charging Upper- FREE SHIPPING! Experience the power and precision of the 16" .223 Wylde Stainless M4 Barrel Carbine Side Charging Upper. This complete upper assembly is engineered for...$260.09 -
On Sale
16" .223 Wylde Carbine Side Charging Upper Assembly
Now: $242.99Was: $324.9916" .223 Wylde Carbine Side Charging Upper Assembly- FREE SHIPPING Introducing our 16" .223 Wylde Carbine Side Charging Complete Upper Assembly, meticulously crafted to deliver superior performance and reliability...Now: $242.99Was: $324.99 -
5.56 NATO 16" Stainless M4 Carbine Side Charging Upper
$287.995.56 NATO 16" Stainless M4 Barrel Carbine Side Charging Upper- FREE SHIPPING Introducing the 5.56 NATO 16" Stainless M4 Barrel Carbine Side Charging Upper, a precision-crafted upper receiver designed for enhanced performance and...$287.99