AR-15 Build Kits
At A1Armory.com, our AR-15 Firearm Build Kits category offers enthusiasts and professionals alike a comprehensive array of components to construct their ideal AR-15 rifle. From seasoned marksmen to first-time builders, our kits cater to all skill levels and preferences, ensuring a seamless and satisfying assembly process. Each kit is meticulously curated to include high-quality components such as upper and lower receivers, barrels, handguards, stocks, and all necessary small parts, providing everything needed to craft a reliable and personalized firearm.
Our selection encompasses a diverse range of options, including various calibers, barrel lengths, and finishes, allowing customers to tailor their build to their specific needs and preferences. Whether you're looking to build a precision rifle for long-range shooting, a compact carbine for close-quarters engagements, or anything in between, our AR-15 Firearm Build Kits category offers the versatility and quality craftsmanship needed to bring your vision to life. With an emphasis on performance, reliability, and affordability, A1Armory.com is your one-stop destination for all your AR-15 building needs.
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7.5" 5.56 Nato Stainless Side Charging Pistol Upper
Now: $242.99Was: $274.99AR15 7.5" 5.56 Nato Stainless Side Charging Pistol Upper- FREE SHIPPING AR15 7.5" 5.56 NATO Stainless Side Charging Pistol Upper, designed to deliver unparalleled performance and reliability in a compact and versatile package...Now: $242.99Was: $274.99 -
8.5" .300 Blackout Parkerized Pistol Length Complete Upper
Now: $277.99Was: $294.998.5".300 Blackout Pistol Length Complete Upper-FREE SHIPPING 8.5" .300 Blackout Pistol Length Complete Upper, engineered for precision, reliability, and versatility. Crafted with meticulous attention to detail and utilizing top-grade...Now: $277.99Was: $294.99 -
AR15 .223 Wylde 20" SS Barrel Complete Upper Assembly
Now: $322.99Was: $368.99AR-15 .223 Wylde 20" SS Barrel Complete Upper Assembly-FREE SHIPPING Title: Precision Performance: AR-15 .223 Wylde 20" SS Barrel Complete Upper Assembly Description: Unlock the full potential of your AR-15 with...Now: $322.99Was: $368.99 -
A1Armory AR15 BCG, Tactical Skeletonized Grip w Charging Handle Bundle
Now: $119.97Was: $149.99A1Armory Nitride M16 / AR15 BCG Bolt Carrier Group - 5.56/.223 with Tactical Skeletonized Pistol Grip- Charging Handle- FREE SHIPPING! 8620 M16 style carrier H&M Black Nitride finish Properly heat treated Final grind before...Now: $119.97Was: $149.99 -
10.5" .450 Bushmaster Carbine Rear Charging Complete Upper
$289.9916" .450 Bushmaster Carbine Rear Charging Complete Upper -FREE SHIPPING Title: "AR-15 10.5" .450 Bushmaster Carbine Rear Charging Complete Upper: Enhance Your Firearm Arsenal" Description: Upgrade your AR-15 with...$289.99 -
16" .450 Bushmaster Side Charging Upper Assembly
$334.9916" .450 Bushmaster Parkerized Side Charging Carbine Upper Assembly- FREE SHIPPING! Title: Premium AR-15 .450 Bushmaster Complete Upper Assembly with 16" Heavy Barrel Description: Upgrade your AR-15 platform...$334.99 -
7.62x39 16" Carbine Length Side Charging Complete Upper
Now: $267.99Was: $389.997.62X39 16" Carbine Length Side Charging Upper-FREE SHIPPING 7.62X39 16" Carbine Length Side Charging Upper, designed for precision and performance in your AR-15 platform. With a heavy barrel profile and a 1:10 twist,...Now: $267.99Was: $389.99 -
5.56 7.5" M4 Pistol Side Charging Complete Upper Assembly
Now: $237.99Was: $289.995.56 7.5" M4 Pistol Side Charging Complete Upper Assembly-FREE SHIPPING 5.56 7.5" M4 Pistol Side Charging Complete Upper Assembly, the epitome of compact power and versatility for your AR-15 platform. Crafted with precision engineering and...Now: $237.99Was: $289.99 -
.223 7.5" Pistol Side Charging Complete Upper Assembly
Now: $247.99Was: $309.99.223 Wylde 7.5" Parkerized M4 Barrel Pistol Side Charging Upper-FREE SHIPPING! .223 Wylde 7.5" Parkerized M4 Barrel Pistol Side Charging Upper, engineered to deliver unmatched precision and reliability in a compact package...Now: $247.99Was: $309.99 -
.300 Blackout 7.5" Pistol Side Charging Complete Assembly
Now: $239.99Was: $286.99.300 Blackout 7.5" Right Side Charging Upper - FREE SHIPPING! Title: "Stealth Recon: .300 Blackout 7.5" Right Side Charging Upper - Complete AR-15 Assembly" Product Description: Upgrade your AR-15 with our cutting-edge...Now: $239.99Was: $286.99 -
7.62x39 7.5" Pistol Length Side Charging Complete Upper
Now: $257.99Was: $289.997.62x39 7.5" Parkerized Heavy Barrel Side Charging Upper-FREE SHIPPING Introducing our 7.62x39 7.5" Parkerized Heavy Barrel Side Charging Upper, meticulously crafted to deliver top-notch performance in a compact package. Here's what...Now: $257.99Was: $289.99 -
AR-15 Alpha Stock Ambi Mil Spec Lower Parts Build Kit
$139.99A1Armory 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 itself...$139.99 -
AR-15 Cobra Stock MK2 Ambi Mil Spec Lower Parts Build Kit
Now: $139.99Was: $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: $139.99Was: $159.99 -
AR-15 Alpha Stock MK2 Ambi Mil Spec Lower Parts Build Kit
$139.99Trinity 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...$139.99 -
AR-15 Omega Stock Ambi Mil Spec Lower Parts Build Kit
$139.99A1Armory AR-15 Lower Build Kit - OMEGA- Stock This AR15 Lower Parts Build Kit comes with a complete LPK and a Mil-Spec Omega Stock Kit. This lower build kit comes with everything that you need to complete your 80 percent lower other than the lower...$139.99 -
AR-15 Lower Parts Build Kit Flat Dark Earth Magpul MOE Stock
Now: $139.99Was: $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: $139.99Was: $189.99 -
AR-15 Lower Parts Build Kit Flat Dark Earth Minimalist Stock
$189.99RTB 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...$189.99 -
AR-15 16" .450 Bushmaster Side Charging Complete Upper Assembly
Now: $289.99Was: $334.9916" .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...Now: $289.99Was: $334.99 -
16" .223 Wylde Stainless M4 Carbine Side Charging Upper
Now: $297.99Was: $349.9916" .223 Wylde Stainless M4 Barrel Carbine Side Charging Upper- FREE SHIPPING! This AR-15 complete .223 Wylde rifle length upper has a 16" M4 contour barrel with a stainless finish, and features a 1:8 twist rate, with a carbine length gas...Now: $297.99Was: $349.99 -
16" .300 Blackout Stainless Black Nitride Bear Claw Complete Upper
Now: $328.99Was: $389.9916" .300 Blackout Stainless Black Nitride Bear Claw Fluted Heavy Barrel-FREE SHIPPING 16" .300 Blackout Stainless Black Nitride Bear Claw Complete Upper, designed to elevate your AR-15 platform with precision engineering...Now: $328.99Was: $389.99