AR-15 Parts
Welcome to A1Armory.com! The top choice for deals on AR-15 parts, kits, accessories and more. All discounted priced and backed by outstanding customer service. Made in America with warranties!
-
10 Pack AR-15/AR-10 Selector & Ejector Spring Set
$8.5110 Pack-A1Armory AR-15/AR-10/M16 Selector/Ejector Spring Set One of the most common caused for a "failure to eject" is a worn or broken ejector spring. Springs are considered "wear" items and have a limited service life. Make...$8.51 -
AR15/AR10 Gas Key Screw
$1.13AR-15 Gas Key Screw Title: Precision-Engineered AR-15 Gas Key Screw - Enhance Your Firearm's Performance Description: Upgrade your AR-15, M16, or AR-10 with our top-of-the-line Gas Key Screw, meticulously designed for...$1.13 -
10 Pack AR-15 Ejector Roll Pins
$5.84A1Armory AR-15 Ejector Roll Pins 10 Pack AR-15 ejector roll pins play a crucial role in the functioning of the rifle's ejection system. They are small, cylindrical pins that secure the ejector spring and ejector in place within the...$5.84 -
10 Pack AR-15 Mil-Spec Extractor Springs
$6.2910 Pack AR-15 Mil Spec Extractor Springs Mil-Spec Fits any standard AR-15 / M16 bolt Standard power MADE IN USA ...$6.29 -
A1Armory AR-15 Mil Spec Trigger Spring
$1.79A1Armory AR-15 mil-spec Trigger Spring A1Armory AR-15 Mil-Spec Trigger Spring, meticulously crafted to exacting mil-spec dimensions for optimal performance. This standard power trigger spring is designed for use on both AR15...$1.79 -
On Sale
Guntec AR-15 Flat Dark Earth Essentials Kit
Now: $223.16Was: $279.95Guntec AR-15 Flat Dark Earth Essentials Kit- FREE SHIPPING Essentials AR-15 Flat Dark Earth Kit Includes: Flat Dark Earth Gen 3 Gate Flat Dark Earth Mil-Spec Buffer Tube Complete Assembly Flat Dark Earth 5.56...Now: $223.16Was: $279.95 -
Guntec AR-15/AR.308 Anodized Black Extended Mag Catch Paddle Release
$17.99Guntec AR-15/AR.308 Black Anodized Extended Mag Catch Paddle Release Ergonomic Contoured Design Fits Any .223/.308 Quick Acquisition Allows For Fast Mag Change Us Made Milspec Lower...$17.99 -
AR15 16" 5.56 Nitride M4 Carbine Length Barrel
MSRP: $88.99$58.49AR15 16" 5.56 Nitride M4 Carbine Length Barrel Looking for a battle-proven barrel that blends durability, performance, and value? This AR-15 16" 5.56 NATO M4 Carbine-Length Barrel is designed to meet the demands of shooters who...MSRP: $88.99$58.49 -
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 -
10 Pack AR-15 Buffer Retaining Pin
$17.0610-AR-15 Nitride Buffer Retaining Pin 10-AR-15 Nitride Buffer Retaining Pins, meticulously engineered to meet and exceed milspec standards. Crafted with precision on state-of-the-art Swiss CNC machines, these buffer retainer pins...$17.06 -
10 Pack AR-15 Bolt Catch Plunger
$7.1910 -A1Armory AR-15 Nitride Bolt Catch Plunger Upgrade your AR-15 with the reliable and durable A1Armory AR-15 Nitride Bolt Catch Plunger. Perfect for both enthusiasts and professional gunsmiths, this bolt catch plunger ensures...$7.19 -
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 -
Presma Skeletonized Black Pistol Grip
MSRP: $49.99$35.99A1Armory Skeletonized Black Pistol Grip Lightweight. Rugged. American-Made. Upgrade your AR platform with the A1Armory Skeletonized Black Pistol Grip—a sleek, precision-engineered component that blends ultra-lightweight design...MSRP: $49.99$35.99 -
Black Nitride Pistol Length Gas Tube With Roll Pin
MSRP: $15.99$11.69A1Armory AR-15 Black Pistol Length Gas Tube With Roll Pin This is our Mil-Spec Pistol Length Gas tube, made in the U.S.A. Provides optimal heat and corrosion resistance and consistent gas flow. Length: 6.75" Steel...MSRP: $15.99$11.69 -
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 -
10 Pack AR-15 Lower Receiver Safety Selector Detents
MSRP: $16.99$11.03A1Armory AR-15 Selector Detent 10 Pack Lower Parts A1Armory AR-15 Selector Detent 10 Pack Lower Parts, meticulously crafted to meet and exceed milspec dimensions, ensuring optimal performance and reliability for...MSRP: $16.99$11.03 -
AR-15 Nitride Fire Control Group Pin Set
$2.69AR-15 Fire Control Group Pin/FCG Pin Set Upgrade your AR-15 or M16 lower with our premium AR-15 Fire Control Group (FCG) Pin Set, engineered for superior fit, finish, and function. Whether you're assembling a new build or...$2.69 -
A1armory AR15 Hammer Spring
$1.79AR Platform Hammer Spring Title: A1armory USA-Made MIL-SPEC AR-15/M16 Hammer Spring: Elevate Your Firearm's Performance Features: Precision-crafted in the USA to meet MIL-SPEC standards,...$1.79 -
AR10 / AR15 Disconnector
MSRP: $4.49$4.04AR-15 Disconnector Upgrade your AR-15 or AR-10 platform with the A1Armory AR-15 Disconnector — engineered for precision, durability, and smooth operation. Whether you're building a new rifle or replacing a worn...MSRP: $4.49$4.04 -
A1armory AR15 Takedown/Pivot Pin Detent Set
MSRP: $1.99$1.79AR-15 Pivot Pin & Takedown Pin Detents Perfect for replacing lost parts or preparing for future builds, these AR-15 Pivot Pin & Takedown Pin Detents are a must-have for any serious gunsmith, armorer, or enthusiast...MSRP: $1.99$1.79 -
AR15 Takedown/Pivot Springs & Detents Set
MSRP: $6.99$2.69AR-15 Takedown / Pivot springs & Detent Pins Ensure the reliable function of your AR-15’s takedown and pivot pins with this high-quality Mil-Spec Takedown / Pivot Springs & Detent Pin Set. Perfect for builders,...MSRP: $6.99$2.69 -
100 Quantity AR15 Magazine Catch Springs
$31.49100 Bulk Wholesale AR15 Magazine Catch Spring For gunsmiths, builders, and retailers who demand top-tier reliability and performance, this bulk pack of 100 AR-15 Magazine Catch Springs delivers unmatched value and consistency...$31.49 -
10 Pack AR15 Mil-Spec Disconnect Spring
$6.98A1armory AR15 Mil-Spec Disconnect Springs 10 in a pack Mil-Spec Standard power Made in America$6.98 -
10 Pack AR-15 Buffer Retaining Spring
$3.8310 Pack A1armory Buffer Retaining Springs Introducing the 10 Pack A1armory Buffer Retaining Springs, designed for both new builds and as reliable replacements for worn-out parts. Crafted with precision and engineered to exacting...$3.83 -
10 Pack AR15 Bolt Catch Springs
$6.98AR-15 Platform Mil-Spec Bolt Catch Springs Manufactured to milspec dimensions For use on M16, AR15, and AR10, style firearms 100% USA Made Comes in pack of 10$6.98 -
10 Pack AR15 Bolt Catch Roll Pins
$5.39AR-15 Bolt Catch Roll Pin 10 Pack Upgrade or maintain your AR-15 with confidence using this high-quality 10-pack of AR-15 Bolt Catch Roll Pins. Whether you're building a rifle from the ground up or replacing worn parts, these pins ensure...$5.39 -
On Sale
Timber Creek Outdoors AR-15 Black Enforcer Skeletonized Pistol Grips
MSRP: $99.99Now: $71.09Was: $84.99Timber Creek Outdoors Black AR-15 Enforcer Skeletonized Pistol Grip- Bring precision, comfort, and cutting-edge design to your AR-15 with the Timber Creek Outdoors Black Enforcer Skeletonized Pistol Grip. This...MSRP: $99.99Now: $71.09Was: $84.99 -
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 -
BCA Carbine Length Gas Tube
MSRP: $14.99$9.89BCA 9.75" Carbine Length Gas Tube The Bear Creek Arsenal Stainless Steel gas tube is an excellent option to get your new rifle up and running. The corrosion resistant stainless steel construction ensures a life time of service. Each gas...MSRP: $14.99$9.89 -
WLA AR15 Flat Dark Earth Bolt Carrier Group
$119.69AR15 Flat Dark Earth 5.56/.223 Bolt Carrier Group-FREE SHIPPING Description: Upgrade your AR15 with our premium Flat Dark Earth 5.56/.223 Bolt Carrier Group, meticulously engineered for optimal performance and durability...$119.69 -
White Label Armory M16 / AR15 BCG Bolt Carrier Group - 5.56/.223
$121.49White Label Armory AR-15 5.56/.223 Bolt Carrier Group-FREE SHIPPING White Label Armory M16 / AR15 BCG bolt carrier group is the perfect BCG for your next build. 100% USA Made. 8620 M16 style carrier H&M Black Nitride...$121.49 -
Timber Creek Outdoors AR15 Black Takedown Pin Set
MSRP: $19.99$16.19Timber Creek Outdoors Black Takedown Pin Sets Upgrade your AR-platform rifle with the Timber Creek Outdoors Black Takedown Pin Set, engineered for enhanced function and sleek aesthetics. Whether you’re customizing a...MSRP: $19.99$16.19 -
Timber Creek Robins Egg Blue Ambi Safety Selector
$35.99Timber Creek Robins Egg Blue Ambidextrous Safety Selector Add function and flair to your AR-15 or AR-10 build with the Timber Creek Outdoors Robin's Egg Blue Ambidextrous Safety Selector. Engineered for precision and...$35.99 -
Timber Creek Black AR15 Oversized Trigger Guard
$21.59Timber Creek AR-15 Black Oversized Trigger Guard Enhance your AR-15 with the Timber Creek Outdoors Black Oversized Trigger Guard Mount, engineered for superior function, comfort, and tactical reliability...$21.59 -
Timber Creek Black Extended Mag Release
$17.99Timber Creek Outdoors Black Extended Mag Catch Release Button Upgrade your AR platform with the Timber Creek Outdoors Black Extended Magazine Release Mount, engineered for enhanced speed, control, and ergonomics. Whether...$17.99 -
AR-15 Nitride Bolt Carrier Group 5.56/.223/.300
$76.49AR-15 .223/5.56 NATO/.300 Blackout/.350 Legend AR-15 Bolt Carrier Group Elevate your AR-15's performance with the versatile and robust AR-15 Bolt Carrier Group from A1Armory. Precision-engineered and thoroughly inspected, this...$76.49 -
AR-15 .223/5.56/300BLK Nickel Boron Bolt Carrier Group
$121.49AR-15 .223/5.56/300BLK M16 Nickel Boron Bolt Carrier Group-FREE SHIPPING! Upgrade your rifle with the A1Armory .223/5.56/300BLK M16 Nickel Boron Bolt Carrier Group, designed for peak reliability, smoother...$121.49 -
2 Knurled Gas Block Set Screw
MSRP: $2.99$1.702 AR15 Knurled Gas Block Set Screws Upgrade your AR-15’s gas system with A1Armory’s Knurled Gas Block Set Screws, designed for reliable performance and secure fitment. Proudly made in the USA, these set screws deliver the...MSRP: $2.99$1.70 -
AR15 1/2in Black Crush Washer
$1.791/2in Black Or Stainless Steel Crush Washers Product Description: Ensure optimal performance and longevity for your AR15 threaded barrel with our premium 1/2 inch crush washers, designed to be used behind flash hiders or...$1.79
AR-15 Parts – Build, Customize & Maintain Your Rifle
At A1Armory.com, we carry a full selection of high-quality AR-15 parts designed for shooters who demand reliability, performance, and customization options. Whether you’re building your first AR from the ground up, upgrading components for improved handling, or replacing worn parts, we provide everything you need in one place.
Why Choose Our AR-15 Parts?
✅ Wide Selection – From barrels, triggers, handguards, and stocks to small pins, springs, and buffer assemblies, we stock all the essential AR-15 components.
✅ Premium Materials – Every part is crafted from durable materials like 4150 Chrome Moly Vanadium steel, 7075-T6 aluminum, and stainless steel to ensure strength and long service life.
✅ Cerakote & Anodized Colors – Personalize your rifle with a variety of Cerakote finishes and anodized colors including Flat Dark Earth (FDE), Burnt Bronze, Zombie Green, and more.
✅ Made in the USA Options – We proudly carry parts manufactured in the United States, built to meet strict Mil-Spec standards.
✅ Affordable & Trusted – Competitive pricing backed by our small, family-owned business ethos means you get dependable parts with unmatched service.
Build It Your Way
Whether you want a precision long-range rifle, a lightweight competition build, or a tactical carbine, our parts catalog gives you the freedom to customize your AR-15 exactly how you want it. From complete upper and lower assemblies to individual components, we ensure compatibility, performance, and trusted quality in every piece we sell.