AR-15 Parts

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!

  • AR-15 Laser Engraved 5.56 NATO Ejection Port Door Cover Kit

    AR-15 Laser Engraved 5.56 NATO Ejection Port Door Cover Kit

    $13.49
    AR-15 Laser Engraved 5.56 NATO Ejection Port Door Cover Kit       Give your AR-15 a tactical edge and enhanced reliability with our AR-15 Laser Engraved 5.56 NATO Ejection Port Door Cover Kit. Meticulously engineered for both function and...
    $13.49
  • AR-15 Laser Engraved American Flag Ejection Port Door Cover Kit

    AR-15 Laser Engraved American Flag Ejection Port Door Cover Kit

    $13.49
    AR-15 Laser Engraved American Flag Ejection Port Door Cover Kit     Enhance your AR-15 with a bold, patriotic upgrade that combines durability, precision engineering, and eye-catching design. The Laser Engraved American Flag Ejection Port Door...
    $13.49
  • AR-15 Engraved Woman Dust Cover Kit

    AR-15 Engraved Woman Dust Cover Kit

    $13.49
    AR-15 Engraved Woman Dust Cover Kit       AR-15 Engraved Dust Cover Dust cover, Knurled Rod, Spring MADE IN THE U.S.A      
    $13.49
  • Timber Creek AR-15 Blue Billet Enhanced Dust cover

    Timber Creek AR-15 Blue Billet Enhanced Dust cover

    $26.99
    Timber Creek AR-15 Blue Billet Enhanced Dust cover       Bring precision, personality, and performance to your AR build with the Timber Creek Outdoors AR-15 Blue Billet Enhanced Dust Cover. Designed for shooters who want both...
    $26.99
  • Timber Creek AR-15 Burnt Bronze Billet Enhanced Dust cover

    Timber Creek AR-15 Burnt Bronze Billet Enhanced Dust cover

    $26.99
    Timber Creek AR-15 Burnt Bronze Billet Enhanced Dust cover     Give your AR-15 the upgrade it deserves with the Timber Creek Outdoors Burnt Bronze Billet Enhanced Dust Cover. Crafted from billet aluminum and finished in a stunning Burnt Bronze...
    $26.99
  • Timber Creek AR-15 Flat Dark Earth Billet Enhanced Dust cover

    Timber Creek AR-15 Flat Dark Earth Billet Enhanced Dust cover

    $26.99
    Timber Creek AR-15 Flat Dark Earth Billet Enhanced Dust cover       Enhance your AR-15 with the rugged durability and head-turning aesthetics of the Timber Creek Outdoors AR-15 Billet Enhanced Dust Cover in Flat Dark Earth (FDE)...
    $26.99
  • AR-15 Black LE Mil-Spec Adjustable Stock w Sling Adapter

    AR-15 Mil-Spec Adjustable LE Stock w/ Sling Adapter & Recoil Pad

    $17.09
    AR-15 Black LE Mil-Spec Adjustable Stock w/ Sling Adapter       Upgrade your AR-15 platform with the Black LE Mil-Spec Adjustable Stock – engineered for law enforcement-grade performance and built to withstand the...
    $17.09
  • AR-15 Mil Spec Ambi Lower Build Kit minus Lower Receiver-A1Armory.

    AR-15 Mil Spec Lower Build Kit minus Lower Receiver

    MSRP: $139.99
    $89.09
    A1Armory 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
  • AR-15 Assembled Upper Receiver w Forward Assist & Dust Cover BCG

    AR15 Upper Receiver Assembly w/ Forward Assist & Dust Cover/BCG

    MSRP: $137.99
    $124.19
    AR-15 Assembled Upper Receiver w/ Forward Assist & Dust Cover/ BCG-FREE SHIPPING     Premium-Quality, Fully Assembled AR-15 Upper Receiver – Built for Performance and Durability Upgrade your AR build with this mil-spec,...
    MSRP: $137.99
    $124.19
  • A1A AR-15 Ambi dual sling mount receiver End Plate-A1Armory.com

    AR-15 Ambidextrous Dual Sling Mount End Plate

    MSRP: $8.99
    $4.49
    AR-15 Ambidextrous Receiver Dual Sling Mount End Plate       Upgrade your rifle’s versatility and reliability with the AR-15 Ambidextrous Receiver Dual Sling Mount End Plate. Engineered for rugged durability and enhanced...
    MSRP: $8.99
    $4.49
  • AR-15 Receiver Extension End Plates

    AR-15 Mil Spec Receiver End Plates

    MSRP: $6.29
    $3.83
    AR-15 Mil Spec Receiver End Plates       Our end plates are stamped, heat treated, and phosphate coated for long-term corrosion resistance. Features: Mil-Spec Hardened Phosphate Coated Made in...
    MSRP: $6.29
    $3.83
  • 10 AR10  AR15 Pivot & Takedown Pin Springs in bulk

    10 AR10 / AR15 Pivot & Takedown Pin Springs

    MSRP: $15.99
    $8.09
    10- Pack Pivot & Takedown Pin Springs         10-Pack Pivot & Takedown Pin Springs✅ Precision-Crafted | ✅ 100% USA Made | ✅ Milspec Quality Ensure smooth operation and reliable performance for your...
    MSRP: $15.99
    $8.09
  • Odin Works Black XMR 3 Extended Magazine Release Button

    Odin Works Black XMR 3 Extended Magazine Release Button

    $18.89
    OdinWorks Black XMR 3 Extended Magazine Release Button       Title: Elevate Your Firearm Performance with Odin Works Black XMR 3 Extended Magazine Release Button Description: Enhance the functionality and aesthetics of your AR15 or AR10...
    $18.89
  • A1Armory AR-15 31 piece complete lower parts kit with fire control group.

    A1Armory 31 piece Lower Parts Kit

    $44.96
    A1Armory 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
  • OdinWorks 223 Black Nitride Bolt Carrier Group

    OdinWorks 223 Black Nitride Bolt Carrier Group

    $116.99
    Odin Works .223/5.56/.300 Black Nitride Bolt Carrier Group-FREE SHIPPING     Features: Mil-Spec dimensions Bolt Carrier Group Material: Case Hardened 8620 Steel Finish: Black Nitride. This advanced low friction coating minimizes the need for...
    $116.99
  • blue Odin Works 15.5" BLUE 02 Lite M-Lok Handguard

    Odin Works Blue 15.5" 02 Lite M-Lok Handguard

    $188.78
    Odin Works 15.5" 02 Lite M-Lok Handguard-FREE SHIPPING!   The O2 Lite Hand guard is the latest and lightest of all the ODIN Works forends. Precision machined from 6005-T651, the O2 lite is a full 20% lighter than its predecessors. All ODIN Works...
    $188.78
  • ODIN WORKS AR15 .223 Wylde 16.1 Mid Length Barrel

    Odin Works AR15 .223 Wylde 16.1" Mid Length Stainless Steel Barrel

    $296.99
      Odin Works .223 16.1" Mid Length Barrel-FREE SHIPPING!             Description: Elevate your AR15 performance to unparalleled levels with the Odin Works .223 16.1" Mid-Length Barrel. Crafted with precision and...
    $296.99
  • Odin Works 223 Wylde  16.1" Intermediate Barrel

    Odin Works .223 Wylde 18" 3-gun Intermediate Barrel

    $313.19
      Odin Works .223 Wylde 18" 3-gun Intermediate Barrel- FREE SHIPPING!           The Odin Works .223 Wylde 18" 3-gun Intermediate Barrel is a high-quality barrel engineered for exceptional accuracy and reliability in...
    $313.19
  • Odin Works 223 Wylde  16.1" Intermediate Barrel

    Odin Works .223 Wylde 16.1" Intermediate Barrel

    $314.99
    Odin Works .223 Wylde 16.1" Intermediate Barrel W Free Adjustable Gas Block-FREE SHIPPING!       Experience the ultimate in accuracy and adaptability with the Odin Works .223 Wylde 16.1" Intermediate Barrel. This exceptional barrel is...
    $314.99
  • SKULL - MILSPEC AR-15 TRIGGER GUARD

    AR15 Custom Engraved Reaper Skull Mil-Spec Trigger Guard

    $8.09
    AR-15 Custom Engraved Reaper Skull Milspec Trigger Guard       Description: Elevate your AR-15 to new heights with our Custom Engraved Reaper Skull Mil-Spec Trigger Guard, meticulously crafted for firearm enthusiasts who...
    $8.09
  • AR15 Custom Engraved Distressed Flag Trigger Guard

    AR15 Custom Engraved Distressed Flag Trigger Guard

    $7.88
    AR15 Custom Engraved Distressed Flag Trigger Guard       Upgrade your AR-15 with the Custom Engraved Distressed American Flag Trigger Guard, a perfect blend of rugged design, patriotic detail, and mil-spec reliability. Crafted for builders...
    $7.88
  • DON'T TREAD ON ME - MILSPEC AR-15 TRIGGER GUARD

    AR15 Custom Engraved Don't Tread On Me Mil-Spec Trigger Guard

    $7.88
    AR15 Custom Engraved Don't Tread On Me Mil-Spec Trigger Guard       Title: "AR15 Custom Engraved Don't Tread On Me Snake Mil-Spec Trigger Guard - Elevate Your Firearm with Precision Craftsmanship" Description: Upgrade your AR15 with the...
    $7.88
  • ar15 black PHASE 5 black DIMPLED MAGAZINE RELEASE button

    Phase5 Black Dimpled Magazine Release Button

    $10.79
    Phase 5 Black Dimpled Magazine Release       Black/ Red/ Grey / Blue The Phase 5™ PMR-Dimpled is a CNC machined 6061-T6 billet aluminum magazine release button. Easy to install, the PMR is a drop in component that...
    $10.79
  • PHASE 5 AR-15 COMPLETE BCG WITH ALL-OVER-PRINT - BLACK PHOSPHATE, CHROME LINED.

    Phase5 AR15 Bolt Carrier Group Logo Wrap Printed

    $148.49
    Phase 5 Chrome lined Printed Logo Bolt Carrier Group-FREE SHIPPING!       Title: Phase 5 Limited Edition Chrome-Lined AR-15 Bolt Carrier Group with All-Over-Print Logo Description: Elevate your AR-15 with Phase 5's exclusive...
    $148.49
  • Phase 5 AR-15 NICKEL BORON BOLT CARRIER GROUP

    Phase5 AR-15 Nickel Boron Bolt Carrier Group

    $166.50
    Phase 5 Nickel Boron AR-15 Bolt Carrier Group-FREE SHIPPING       Title: Enhance Your AR-15 Performance with the Phase 5 Nickel Boron Coated Bolt Carrier Group Description: Elevate the performance of your AR-15 with the Phase 5 Nickel...
    $166.50
  • Phase5 black Angled Textured Magazine Release

    Phase5 Black Angle Textured Magazine Release

    $11.69
    Phase5 Black Angled Textured Magazine Release       Title: Precision Performance Upgrade: Phase5 Black Angled Textured Magazine Release for Enhanced Firearm Control Description: Elevate your firearm's performance with the Phase 5™...
    $11.69
  • AR-15 CHROME LINED BLACK PHOSPHATE COMPLETE BOLT CARRIER GROUP

    Phase5 AR-15 Chrome Lined Complete Bolt Carrier Group

    $134.09
    Phase5 AR-15 Chrome Lined Complete Bolt Carrier Group-FREE SHIPPING!     Phase 5’s Mil-spec AR-15 bolt carrier features a heat treated and chrome lined inner with a black phosphate coating. The complete bolt carrier group includes cam...
    $134.09
  • Phase5 Black Oversized Magazine Release (OMR)

    Phase5 Black Oversized Magazine Release (OMR)

    $22.49
    Phase 5 Black Oversized Magazine Release (OMR)           Title: Precision Performance Upgrade: Phase 5 Black Oversized Magazine Release (OMR) for Enhanced Firearm Control Description: Elevate...
    $22.49
  • On Sale
    M16 / M4 CHROME LINED BLACK PHOSPHATE COMPLETE BOLT CARRIER GROUP

    Phase5 M16 / M4 Chrome Lined Complete Bolt Carrier Group

    Now: $143.99
    Was: $165.00
    M16/M4 Chrome Lined Black Phosphate Bolt Carrier Group-FREE SHIPPING!     Phase 5’s Mil-spec M-16 / M4 bolt carrier features a heat treated and chrome lined inner with a black phosphate coating. The complete bolt carrier group includes...
    Now: $143.99
    Was: $165.00
  • PHASE5 EXTENDED BOLT RELEASE LOWER PART V1-WWW.A1ARMORY.COM

    Phase5 Black Extended Bolt Release V1

    MSRP: $59.99
    $44.99
    Phase 5 Extended Black Bolt Release V1     The Phase 5™ Extended Bolt Release v1 (EBRv1) is a two-piece heat-treated add-on. When mounted to your existing bolt catch, the EBRV1 helps clear jams and double feeds efficiently, and allows...
    MSRP: $59.99
    $44.99
  • ar15 BLACK Phase5 Winter Trigger Guard

    Phase5 Black Winter Trigger Guard

    MSRP: $29.99
    $26.99
    Phase 5 Black Winter Trigger Guard       Description: Upgrade your firearm's functionality and aesthetics with the newly redesigned Phase 5 Black Winter Trigger Guard (WTG). Crafted from durable Billet Aluminum and finished...
    MSRP: $29.99
    $26.99
  • BLACK Phase5 Extended Bolt Release V3-www.a1armory.com

    Phase5 Black Extended Bolt Catch Release Bad Lever V3

    MSRP: $64.99
    $58.49
    Phase5 Black Extended Bolt Release Bad Lever V3     The Phase 5™ EBRv3 RED and BLUE finish are CERAKOTE. Does not match anodized red/blue components.  The Extended Bolt Release Version 3 was designed to be compatible with all mil...
    MSRP: $64.99
    $58.49
  • AR-15 Forward Assist Spring lower part

    10 Pack AR15 Forward Assist Springs

    $5.39
    10-AR15 / AR10 Lower Parts - Forward Assist Springs       Title: "Premium 10-Pack AR15/AR10 Lower Parts - Forward Assist Springs" Product Description: Upgrade your firearm's performance with our premium 10-Pack AR15/AR10 Lower Parts -...
    $5.39
  • M16  AR10  AR15 Selector & Ejector Spring 10 pack lower parts-A1Armory

    10 Pack AR-15/AR-10 Selector & Ejector Spring Set

    $8.51
    10 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
  • AR-15 Gas Key Screw

    AR15/AR10 Gas Key Screw

    $1.79
    AR-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...
    $1.79
  • A1Armory AR-15 EJECTOR ROLL PIN for bcg bolt carrier groups-A1Armory lower ar15 parts, quantity and bulk discounts

    10 Pack AR-15 Ejector Roll Pins

    $5.84
    A1Armory 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
  • AR-15 Extractor Spring for upper bolt carrier group parts in rifle

    10 Pack AR-15 Mil-Spec Extractor Springs

    $6.29
    10 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 Trigger Spring

    A1Armory AR-15 Mil Spec Trigger Spring

    $1.79
    A1Armory 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 Furniture Kit

    Guntec AR-15 Flat Dark Earth Essentials Kit

    Now: $223.16
    Was: $279.95
    Guntec 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: $223.16
    Was: $279.95

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.