AR-15 Build Kits
At A1Armory.com, our AR-15 Build Kits offers enthusiasts and professionals alike a comprehensive array of components to construct their ideal AR-15 rifle or pistol. 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.
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Guntec AR-15 Green Anodized Ultimate Pistol Kit
$545.95Guntec AR-15 Green Anodized Ultimate Pistol Kit-FREE SHIPPING! Guntec AR-15 Green Anodized Ultimate Pistol Kit, a comprehensive package designed to elevate your AR-15 pistol to new heights of performance and style...$545.95 -
Guntec AR-15 Gold Anodized Ultimate Pistol Kit
$545.95Guntec AR-15 Gold Anodized Ultimate Pistol Kit-FREE SHIPPING! Guntec AR-15 Gold Anodized Ultimate Pistol Kit – a comprehensive assembly of premium components designed to elevate your AR-15 pistol build to new heights. This...$545.95 -
Guntec AR-15 Blue Anodized Ultimate Pistol Kit
$545.95Guntec AR-15 Blue Anodized Ultimate Pistol Kit-FREE SHIPPING! Guntec AR-15 Blue Anodized Ultimate Pistol Kit, a comprehensive package designed to elevate your AR-15 pistol build to the next level. With a stunning anodized...$545.95 -
Guntec AR-15 Red Anodized Ultimate Pistol Kit
$545.95Guntec AR-15 Red Anodized Ultimate Pistol Kit- FREE SHIPPING Guntec AR-15 Red Anodized Ultimate Pistol Kit, a comprehensive package designed to elevate your AR-15 pistol build to the next level. Crafted with precision and...$545.95 -
On Sale
Guntec 5.5" AR-15 5.56 Complete Pistol Upper
Now: $408.58Was: $549.00Guntec 5.5"AR-15 5.56 Compression Series Micro Pistol Upper -FREE SHIPPING! -NOT ASSEMBLED- Introducing the Guntec 5.5" AR-15 5.56 Compression Series Micro Pistol Upper, a meticulously crafted firearm component...Now: $408.58Was: $549.00 -
On Sale
Guntec AR-15 5.56 7.5" Complete Pistol Length Upper Kit
Now: $445.89Was: $549.00AR-15 5.56 7.5" Complete Pistol Length Upper Kit- FREE SHIPPING! This AR-15 Guntec Complete Upper Kit comes with an Ultra Lite MLOK Handguard, 5.56 Bolt Carrier Group, A2 Birdcage, Barrel, Charging Handle, Upper Receiver,.750 Gas Block/Gas Tube and this...Now: $445.89Was: $549.00 -
On Sale
7.62x39 7.5" Pistol Length Side Charging Complete Upper
Now: $208.38Was: $278.997.62x39 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: $208.38Was: $278.99 -
On Sale
Guntec AR-15 9mm Complete Black Pistol Kit
Now: $591.49Was: $725.00Guntec AR-15 9mm Complete Black Pistol Kit- FREE SHIPPING! All US Made 9mm Upper Receiver US 7″ Mod Lite Series M-LOK Handguard With Barrel Nut & Hardware (GT-7MDLTE) 1/2 X 36 Slim Line Flash Cone...Now: $591.49Was: $725.00 -
Guntec AR-15 5.56 Series Micro Pistol Kit-No Lower
$709.79Guntec AR-15 5.56 Micro Pistol Kit-No Lower- FREE SHIPPING! This Guntec AR15 Complete Micro Pistol Kit comes with everything you need for your pistol build besides the lower. Mill your own 80% or have one ready to build, this is a...$709.79 -
AR-15 Alpha Stock Ambi Mil Spec Lower Parts Build Kit
$127.39A1Armory 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...$127.39 -
On Sale
AR-15 Cobra Stock MK2 Ambi Mil Spec Lower Parts Build Kit
Now: $127.39Was: $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: $127.39Was: $159.99 -
AR-15 Alpha Stock MK2 Ambi Mil Spec Lower Parts Build Kit
$127.39Trinity 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...$127.39 -
AR-15 Omega Stock Ambi Mil Spec Lower Parts Build Kit
$127.39A1Armory AR-15 Omega Lower Parts Build Kit-FREE SHIPPING AR-15 Omega Stock Lower Build Kit Upgrade your AR-15 with the Omega Stock Lower Build Kit, designed for both reliability and performance. Perfect for builders and enthusiasts...$127.39 -
AR-15 .223 Wylde 16" M4 Stormtrooper White Complete Upper
$354.8916" .223 Wylde Storm Trooper White Complete Upper-FREE SHIPPING! Title: "AR-15 16" .223 Wylde Storm Trooper White Complete Upper - Heavy Barrel, Rear Charging, BCG Included" Description: Elevate your AR-15 with the 16" .223...$354.89 -
On Sale
AR-15 Lower Parts Build Kit Flat Dark Earth Magpul MOE Stock
Now: $127.39Was: $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: $127.39Was: $189.99 -
AR-15 Lower Parts Build Kit Flat Dark Earth Minimalist Stock
$172.89RTB 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...$172.89 -
On Sale
Odin Works 16" 223 Wylde Complete Upper
Now: $740.69Was: $900.00Odin Works 223 Wylde Assembled Complete 16" Upper- FREE SHIPPING! Odin Works 223 Wylde Assembled Complete 16" Upper, meticulously crafted to elevate your shooting experience to unparalleled heights. Engineered with precision and...Now: $740.69Was: $900.00 -
AR-15 16" .450 Bushmaster Side Charging Complete Upper Assembly
$295.7416" .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...$295.74 -
AR-15 5.56 NATO 16" Complete Billet Premium Upper Receiver
$491.39AR-15 5.56 NATO 16" Complete Billet Premium Upper Receiver-FREE SHIPPING The perfect upper for your lower, without all the tools required to build it. Our complete upper receivers are made from the highest quality USA produced...$491.39 -
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UAR AR-15 16" 223 Wylde Complete Upper Assembly 15" Rail
Now: $386.74Was: $499.9916″ 223 WYLDE COMPLETE UPPER ASSEMBLY, 15″ RAIL -FREE SHIPPING! Our complete upper receiver assemblies include everything you need to complete your lower receiver build. Simply slap on your lower and head out to the...Now: $386.74Was: $499.99 -
UAR AR-15 16" 223 Wylde Complete Upper Assembly 12" Rail
$382.1916″ 223 WYLDE 1/8 COMPLETE UPPER ASSEMBLY, 12″ RAIL- FREE SHIPPING Our complete upper receiver assemblies include everything you need to complete your lower receiver build. Simply slap on your lower and head out to the...$382.19 -
5.56 16" AR-15 Premium Rifle Kit —No Receiver
$573.25AR-15 5.56 16" Premium Rifle Kit-No Receiver -FREE SHIPPING Everything you need to build out a high quality AR15 carbine using whatever lower receiver you want. Built, test-fired, and quality checked in house, our AR15 rifle kits...$573.25 -
On Sale
AR15 5.56 10.5" Complete Premium Upper Receiver Assembly
Now: $469.51Was: $544.95AR15 Complete Premium Upper Receiver-5.56 w/10.5" Barrel, 9.85" MLOK Handguard FREE SHIPPING The perfect upper for your lower, without all the tools required to build it. Our complete upper receivers are made from the highest quality...Now: $469.51Was: $544.95 -
On Sale
AR-15 5.56 NATO 16" Complete Upper
Now: $445.89Was: $544.95AR15 Complete Standard Upper Receiver—5.56 - 16" Barrel, 15" MLOK Handguard-FREE SHIPPING The perfect complete upper for your lower receiver, without all the tools required to build it. Our complete upper receivers are made from the...Now: $445.89Was: $544.95 -
On Sale
Guntec AR-15 Purple Anodized Ultimate Rifle Kit
Now: $568.74Was: $699.00Guntec AR-15 Purple Anodized Ultimate Rifle Kit- FREE SHIPPING! Guntec AR-15 Purple Anodized Ultimate Rifle Kit, a comprehensive and stylish package designed to enhance the performance and aesthetics of your AR-15. Crafted with...Now: $568.74Was: $699.00 -
On Sale
Guntec AR-15 Green Anodized Ultimate Rifle Kit
Now: $568.74Was: $699.00Guntec AR-15 Green Anodized Ultimate Rifle Kit- FREE SHIPPING! Guntec AR-15 Green Anodized Ultimate Rifle Kit, a comprehensive package designed to elevate your AR-15 to the next level of performance and aesthetics...Now: $568.74Was: $699.00 -
On Sale
Guntec AR-15 FDE Ultimate Rifle Kit
Now: $586.94Was: $719.00Guntec AR-15 Flat Dark Earth (FDE) Ultimate Rifle Kit- FREE SHIPPING! Guntec AR-15 Flat Dark Earth (FDE) Ultimate Rifle Kit, a comprehensive package designed to elevate your AR-15 platform to new heights of performance...Now: $586.94Was: $719.00 -
On Sale
Guntec AR-15 Blue Anodized Ultimate Rifle Kit
Now: $568.74Was: $699.99Guntec AR-15 Blue Anodized Ultimate Rifle Kit-FREE SHIPPING Guntec AR-15 Blue Anodized Ultimate Rifle Kit – a comprehensive package designed to elevate your AR-15 build to the next level. This kit is carefully curated with...Now: $568.74Was: $699.99 -
On Sale
Guntec AR-15 Gold Anodized Ultimate Rifle Kit
Now: $568.74Was: $699.00Guntec AR-15 Gold Anodized Ultimate Rifle Kit- FREE SHIPPING! Guntec AR-15 Gold Anodized Ultimate Rifle Kit, a comprehensive package that brings together top-notch components to elevate your AR-15 platform. This kit has...Now: $568.74Was: $699.00 -
16" .223 Wylde Stainless M4 Carbine Side Charging Upper
$262.9816" .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...$262.98 -
16" .300 Blackout Stainless Black Nitride Bear Claw Complete Upper
$309.3916" .300 Blackout Stainless Black Nitride Bear Claw Fluted Heavy Barrel-FREE SHIPPING Product Description: This 16-inch .300 Blackout stainless steel barrel is a high-performance component designed for the AR-15 platform. The...$309.39 -
On Sale
16" .223 Wylde Carbine Side Charging Upper Assembly
Now: $245.69Was: $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: $245.69Was: $324.99 -
5.56 NATO 16" Stainless M4 Carbine Side Charging Upper
$291.195.56 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...$291.19 -
On Sale
Guntec AR15 5.56 Black Complete Ultralight Series Pistol Kit
Now: $591.49Was: $799.00Guntec AR-15 5.56 Complete Ultralight Series Pistol Kit- FREE SHIPPING! All US...Now: $591.49Was: $799.00 -
On Sale
Guntec AR15 5.56 Red Complete Ultralight Series Pistol Kit
Now: $627.89Was: $849.00Guntec AR-15 5.56 Complete Ultralight Series Pistol Kit- No Lower- Anodized Red- FREE SHIPPING! All US Made Kit Does Not Come Assembled 5.56 Complete BCG Forward Assist Asssembly Ultralight Series...Now: $627.89Was: $849.00 -
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Guntec AR15 5.56 FDE Complete Rifle Kit #4
Now: $746.19Was: $929.00Guntec AR-15 5.56 Complete Rifle Kit #4- No Lower- Flat Dark Earth- FREE SHIPPING! All US Made Complete Rifle Kit Contains: 5.56 Ejection Door...Now: $746.19Was: $929.00 -
On Sale
Guntec AR-15 5.56 Complete Rifle Kit #5
Now: $709.79Was: $849.00Guntec AR-15 5.56 Complete Rifle Kit #5- No Lower- FREE SHIPPING! All US Made Complete Rifle Kit Contains: 5.56 Ejection Door Assembly 5.56 Complete Lower Parts Kit AR-15 MLS Gen 2 Stock Assembly...Now: $709.79Was: $849.00 -
On Sale
Guntec AR15 5.56 FDE Complete Rifle Kit #2
Now: $705.24Was: $829.00Guntec AR-15 5.56 Complete Rifle Kit #2- No Lower- FREE SHIPPING! All US Made Complete Rifle Kit Contains: 5.56 Ejection Door Assembly 5.56 Complete Lower...Now: $705.24Was: $829.00 -
On Sale
Guntec AR-15 5.56 Complete Rifle Kit #3
Now: $709.79Was: $849.00Guntec AR-15 5.56 Complete Rifle Kit #3- No Lower- FREE SHIPPING! All US Made Complete Rifle Kit Contains: 5.56 Ejection Door Assembly 5.56 Complete Lower Parts Kit AR-15 MLS Gen 2 Stock Assembly...Now: $709.79Was: $849.00 -
On Sale
Guntec AR15 5.56 FDE Complete Airlite Series Rifle Kit
Now: $864.49Was: $1,099.00Guntec AR-15 5.56 FDE Complete Airlite Series Rifle Kit-FREE SHIPPING! Guntec AR-15 5.56 FDE Complete Airlite Series Rifle Kit, a pinnacle of American-made...Now: $864.49Was: $1,099.00