AR-15 Lower Parts Kits
When you're piecing together your dream AR-15 build, every component matters, right down to the smallest parts. At A1Armory, our AR-15 Lower Parts Kits are meticulously crafted to provide reliability and precision in every shot. These kits feature top-tier components sourced from trusted manufacturers, ensuring that your AR-15 operates smoothly and consistently. Whether you're a seasoned enthusiast or diving into the world of custom builds for the first time, our comprehensive kits make assembly a breeze. From the trigger assembly to the pivot and takedown pins, each part is engineered for durability and performance, so you can trust your rifle in any scenario. Elevate your AR-15 build with A1Armory's Lower Parts Kits and experience the difference quality makes.
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Timber Creek AR-15 Burnt Bronze Lower Parts Color Kit
MSRP: $64.99$49.49Timber Creek Outdoors Burnt Bronze Color Enhanced Parts Kit Upgrade your AR-15 build with Timber Creek Outdoors' Burnt Bronze Lower Enhanced Parts Kit – a sleek, high-performance upgrade that...MSRP: $64.99$49.49 -
Timber Creek AR-15 Blue Lower Parts Color Kit
MSRP: $64.99$49.49Timber Creek Outdoors Blue Color Enhanced Parts Kit Upgrade your rifle with style and functionality using the Timber Creek Outdoors Blue Lower Enhanced Parts Kit. Precision machined and anodized in a striking...MSRP: $64.99$49.49 -
Guntec AR-15 Anodized Orange Anti-Rotation Trigger/Hammer Pin Set
MSRP: $29.99$26.99Guntec AR-15 Anodized Orange Anti-Rotation Trigger/Hammer Pin Set Upgrade your AR-15’s reliability and style with the Guntec USA Anodized Orange Anti-Rotation Trigger/Hammer Pin Set. Designed to eliminate pin walk and...MSRP: $29.99$26.99 -
XTS-58 AR Stock Complete Lower Parts Kit
MSRP: $139.99$80.09XTS Skeletonized Stock Complete Lower Parts Kit XTS Skeletonized Stock Complete Lower Parts Kit – Elevate Your AR Build Upgrade your AR platform with the XTS Skeletonized Stock Complete Lower Parts Kit, engineered for...MSRP: $139.99$80.09 -
AR15 Anodized Blue Enhanced Lower Parts Kit
MSRP: $189.99$170.99AR15 Anodized Blue Enhanced Lower Parts Kit-FREE SHIPPING The AR15 Anodized Blue Enhanced Lower Parts Kit is a top-tier collection of components, designed to upgrade your AR15 with precision and style...MSRP: $189.99$170.99 -
Timber Creek Outdoors AR-15 Robins Egg Blue Lower Parts Kit
$89.09Timber Creek Outdoors AR-15 Robins Egg Blue Lower Parts Kit Add standout style and superior function to your AR-15 with the Timber Creek Outdoors Robin’s Egg Blue Lower Parts Kit. Precision CNC-machined from aircraft-grade...$89.09 -
Timber Creek Outdoors AR-15 OD Green Lower Parts Kit
$89.09Timber Creek Outdoors AR-15 OD Green Lower Parts Kit Complete your AR-15 build with the Timber Creek Outdoors ODG Lower Parts Kit, engineered for performance and built with a tough, military-inspired Olive Drab Green anodized finish...$89.09 -
Timber Creek Outdoors AR-15 Tungsten Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Tungsten Lower Parts Kit Take your AR-15 build to the next level with the Timber Creek Outdoors AR-15 Tungsten Lower Parts Kit. Designed for shooters who value both precision engineering and modern style, this kit features...MSRP: $99.99$80.99 -
Timber Creek Outdoors AR-15 Red Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Red Lower Parts Kit Add a powerful pop of color and tactical performance to your next AR build with the Timber Creek Outdoors AR-15 Red Lower Parts Kit. Designed for shooters who demand quality and...MSRP: $99.99$80.99 -
Timber Creek Outdoors AR-15 Purple Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Purple Lower Parts Kit Make your AR-15 build stand out with the Timber Creek Outdoors AR-15 Purple Lower Parts Kit, engineered for reliability, precision, and vibrant style. Crafted from...MSRP: $99.99$80.99 -
Timber Creek Outdoors AR-15 Orange Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Orange Lower Parts Kit Stand out on the range with the Timber Creek Outdoors AR-15 Orange Lower Parts Kit, designed for shooters who want top-tier performance with a splash of bold style. Crafted from...MSRP: $99.99$80.99 -
Timber Creek Outdoors AR-15 Flat Dark Earth Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Flat Dark Earth (FDE) Lower Parts Kit Build your AR-15 with unmatched precision and tactical flair using the Timber Creek Outdoors Flat Dark Earth (FDE) Lower Parts Kit. Crafted from CNC-machined aircraft-grade...MSRP: $99.99$80.99 -
Timber Creek Outdoors AR-15 Burnt Bronze Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Burnt Bronze Lower Parts Kit Add a bold, tactical edge to your next AR build with the Timber Creek Outdoors Burnt Bronze Anodized Lower Parts Kit. Crafted from aircraft-grade billet aluminum and...MSRP: $99.99$80.99 -
Timber Creek Outdoors AR-15 Blue Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Blue Lower Parts Kit Bring your AR-15 build to life with the Timber Creek Blue Anodized Lower Parts Kit—a perfect blend of precision engineering, bold aesthetics, and rugged durability. Made from aircraft-grade...MSRP: $99.99$80.99 -
AR-15 Mil Spec Buffer Tube Enhanced Lower Parts Kit Combo
$43.19AR-15 Mil Spec Lower Parts Combo Kit Upgrade your AR-15 with this all-in-one combo kit, engineered for durability, performance, and tactical versatility. Ideal for new builds or custom upgrades, this kit includes everything you need...$43.19 -
AR-15 Alpha Stock Ambi Mil Spec Lower Parts Build Kit
$125.99AR-15 Alpha Stock Lower Build Kit ✅ FREE SHIPPING – Fast & Reliable Delivery Whether you're building your first AR-15 or completing your next lower receiver, the AR-15 Alpha Stock Lower Build Kit has everything you need...$125.99 -
On Sale
AR-15 Cobra Stock MK2 Ambi Mil Spec Lower Parts Build Kit
Now: $125.99Was: $159.99AR-15 Lower Build Kit Cobra MK2 Stock ✅ Choose Standard or Ambi Configuration✅ FREE SHIPPING Upgrade your AR-15 build with this premium Lower Build Kit featuring the Cobra MK2 6-Position Stock. Designed for reliability, fit, and...Now: $125.99Was: $159.99 -
AR-15 Omega Stock Ambi Mil Spec Lower Parts Build Kit
$116.99AR-15 Omega Lower Parts Build Kit-FREE SHIPPING Precision. Reliability. American Craftsmanship. Upgrade or complete your AR-15 lower with the Omega Lower Parts Build Kit – a complete, high-quality solution trusted by builders...$116.99 -
AR-15 Lower Parts Build Kit Flat Dark Earth Magpul MOE Stock
$116.99Magpul Flat Dark Earth Lower Parts Build Kit-FREE SHIPPING! Magpul Stock Flat Dark Earth Lower Parts Build Kit✔️ Premium Mil-Spec Components | ✔️ FDE Finish | ✔️ Trusted Magpul Quality Upgrade your AR-15 lower with the Magpul Stock...$116.99 -
AR-15 Lower Parts Build Kit Flat Dark Earth Minimalist Stock
$125.99RTB Lower Parts Build Kit – Mission First Minimalist Stock – Flat Dark Earth Complete Your AR-15 Lower with Confidence & Style This Right To Bear Lower Parts Build Kit is the ideal solution for anyone looking to...$125.99 -
On Sale
Timber Creek AR-15 Black Lower Parts Color Kit
Now: $53.09Was: $64.99Timber Creek Outdoors Black Color Enhanced Parts Kit Description: Upgrade your AR with the Timber Creek Outdoors Black Color Enhanced Parts Kit, featuring precision-engineered components designed to enhance both functionality and...Now: $53.09Was: $64.99 -
Timber Creek Outdoors AR-15 Black Lower Parts Kit
MSRP: $99.99$80.99Timber Creek Outdoors AR-15 Black Lower Parts Kit Elevate your next AR build with the Timber Creek AR-15 Black Lower Parts Kit, a precision-crafted solution for shooters who demand reliability, durability, and tactical style. Built from aircraft-grade...MSRP: $99.99$80.99 -
AR-15 Mil Spec Lower Build Kit minus Lower Receiver
MSRP: $139.99$89.09A1Armory AR-15 Lower Build Kit with LE- Stock-FREE SHIPPING Complete your AR-15 lower receiver with the A1Armory AR-15 Lower Build Kit, featuring an LE Stock. This kit includes everything you need except the lower receiver itself, available...MSRP: $139.99$89.09 -
A1Armory 31 piece Lower Parts Kit
$44.96A1Armory AR-15 Lower Parts Kit Upgrade your AR-15 build with confidence using the A1Armory AR-15 31-Piece Lower Parts Kit — a complete, precision-machined solution for builders and enthusiasts who demand performance,...$44.96 -
A1Armory AR-15 Fire Control Group FCG
$26.99A1Armory AR-15 Fire Control Group FCG Material Excellence: The A1Armory AR-15 Fire Control Group is crafted with precision using high-quality materials to ensure exceptional durability and performance. The trigger and hammer are...$26.99 -
Presma 31 Piece AR-15 Lower Parts Kit With FCG
MSRP: $57.99$39.59Presma 31 Piece AR-15 Lower Parts Kit With FCG Build with confidence using the Presma 31 Piece AR-15 Lower Parts Kit—a comprehensive, high-quality set that includes...MSRP: $57.99$39.59 -
Presma 28 Piece AR-15 Lower Parts Kit .223/5.56
MSRP: $44.99$31.49Presma 28 Piece AR-15 Lower Parts Kit [without FCG] Upgrade your AR-15 build with the Presma 28 Piece Lower Parts Kit, a high-performance component set designed for reliability, customization, and precision. This...MSRP: $44.99$31.49 -
AR-15 Mil-Spec Lower Parts Spring Kit
$4.49AR-15 Mil-Spec Lower Parts Spring Kit Upgrade your AR-15 platform with this comprehensive Mil-Spec Lower Parts Spring Kit, built to exacting standards for dependable performance in every condition. Whether you're assembling a new build or...$4.49 -
AR-15 Lower Parts Kit with FCG
MSRP: $59.99$49.49AR-15 FCG Lower Parts Kit Our AR-15 FCG Lower Parts Kit is designed specifically for pistol caliber builds, crafted with precision and pride right here in the USA. Whether you're upgrading or assembling a new lower, this kit delivers...MSRP: $59.99$49.49 -
AR15 Pin and Detent Kit
$11.48AR-15 Phosphate Pin and Detent Kit Upgrade your rifle build with our AR-15 Phosphate Pin and Detent Kit, expertly engineered and proudly manufactured in the USA. Whether you're building from the ground up or need a...$11.48 -
A1Armory AR15 Lost Parts Kit
$15.26AR-15 Lost Parts Kit Never let a lost detent or spring stall your AR-15 build again. The A1Armory AR-15 Lost Parts Kit is a must-have collection of the most commonly misplaced lower receiver components. Crafted to mil-spec standards...$15.26