AR-15 Lower Parts

AR-15 Lower Parts

At A1Armory.com, our selection of AR-15 Lower Parts encompasses an extensive range of components meticulously crafted to elevate your firearm's performance and durability. Designed with precision engineering and manufactured to exacting standards, our lower parts are the cornerstone of any AR-15 build, ensuring reliability and optimal functionality. From trigger assemblies to buffer tubes, each part is carefully selected to guarantee compatibility and seamless integration, whether you're assembling a new rifle or upgrading an existing platform.

  • AR-15 Bad Ass Engraved Trigger Guard AR15 CUSTOM Bad Ass Engraved Trigger Guard

    AR-15 Bad Ass Engraved Trigger Guard

    $8.99
    AR-15 Bad Ass Engraved Trigger Guard       Show your patriotism and dedication to freedom with the “Don’t Tread On Me” Engraved AR-15 Trigger Guard. Crafted from high-quality 6061 aluminum, this trigger guard is not only...
    $8.99
  • A1A AR-15 Ambi dual sling mount receiver End Plate-A1Armory.com A1A AR-15 Ambi dual sling mount receiver End Plate-A1Armory.com

    AR-15 Ambidextrous Dual Sling Mount End Plate

    $3.59
    A1Armory AR15 Ambidextrous Receiver Dual Sling Mount End Plate     A1Armory AR15 Ambidextrous Receiver Dual Sling Mount End Plate - Mil Spec, the pinnacle of versatility and reliability for your AR15/M16/AR10 platform. Crafted with...
    $3.59
  • A1A AR-15 Receiver Extension End Plate A1A AR-15 Receiver Extension End Plate

    Bulk Wholesale AR-15 Mil-Spec End Plates

    $2.39
    Bulk Wholesale AR Platform Buffer Tube Receiver End Plates       MINIMUM OF 100 MUST BE PURCHASED Description: Upgrade your AR15, M16, or AR10 with our Mil-Spec AR .223/5.56/.308 Buffer Tube Receiver End Plate, designed to...
    $2.39
  • 10 AR10  AR15 Pivot & Takedown Pin Springs in bulk

    10 AR10 / AR15 Pivot & Takedown Pin Springs

    $8.09
    10 Pack Pivot & Takedown Pin Springs       10 Pack Pivot & Takedown Pin Springs – the essential components for firearm enthusiasts seeking reliability and precision. Crafted to milspec dimensions, these springs...
    $8.09
  • 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
  • AR15 Custom Engraved Distressed Flag Trigger Guard 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
  • ar15 black PHASE 5 black DIMPLED MAGAZINE RELEASE button 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
  • Phase5 black Angled Textured Magazine Release 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
  • PHASE5 EXTENDED BOLT RELEASE LOWER PART V1-WWW.A1ARMORY.COM BLACK PHASE5 EXTENDED BOLT RELEASE V1

    Phase5 Black Extended Bolt Release V1

    $35.99
    Phase 5 Extended Black Bolt Release V1 (ebrv1)     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...
    $35.99
  • ar15 BLACK Phase5 Winter Trigger Guard ar15 BLACK Phase5 Winter Trigger Guard

    Phase5 Black Winter Trigger Guard

    $21.59
    Phase 5 Black Winter Trigger Guard         Title: Enhance Your Firearm Control with the Phase 5 Black Winter Trigger Guard Release Button Description: Upgrade your firearm's functionality and aesthetics with the newly...
    $21.59
  • 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
  • A1Armory AR-15 Trigger Spring 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
  • A1Armory AR15 Fire Control Group FCG lower parts kit

    A1Armory AR-15 Fire Control Group FCG

    $26.99
    A1Armory 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-AR-15 Nitride Buffer Retaining Pin 10-AR-15 Nitride Buffer Retaining Pin

    10 Pack AR-15 Buffer Retaining Pin

    $17.06
    10-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
  • AR15 Black Nitride Plunger Bolt Catch lower part for bolt catch assembly

    10 Pack AR-15 Bolt Catch Plunger

    $7.19
    10 -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
  • A1Armory Skeletonized Black Pistol Grip A1Armory Skeletonized Black Pistol Grip

    Presma Skeletonized Black Pistol Grip

    $35.99
    A1Armory Skeletonized Black Pistol Grip       Made in the USA 3.6 oz Height- 4" Black Anodized 6061 T6 Aluminum Fits AR-15, AR-10 and LR .308 Lowers.  Super Strong Skeletonized 6061 T6 Aluminum construction pistol style Rear Grip...
    $35.99
  • AR15 MIL SPEC SPRING KIT WITH TRIGGER SPRING, HAMMER SPRING, FROM A1ARMORY

    A1Armory Mil-Spec Lower Parts Spring Kit

    $4.28
    A1Armory AR-15 Mil-Spec Lower Parts Spring Kit       AR-15 Mil-Spec Lower Parts Spring Kit – meticulously crafted for precision and reliability. Elevate your AR-15 with this comprehensive kit, ensuring optimal performance for every...
    $4.28
  • A1armory AR-15 Fire Control Group Hammer/Trigger Pin Set

    AR-15 Nitride Fire Control Group Pin Set

    $2.48
    A1armory AR-15 Fire Control Group Pin/FCG Pin Set       Title: Premium AR-15 Fire Control Group Pin Set for Superior Performance Description: Upgrade your AR-15 or M16 with our meticulously crafted AR-15 Fire Control Group Pin...
    $2.48
  • AR Platform Hammer Spring AR Platform Hammer Spring

    A1armory AR15 Hammer Spring

    $1.79
    AR 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
  • AR-15 mil spec DISCONNECT lower trigger parts-www.A1Armory.com A1armory AR15 Disconnector

    AR10 / AR15 Disconnector

    $4.28
    A1armory AR15 Disconnector       Product Description: Upgrade your AR15 or AR10 rifle with the A1armory AR15 Disconnector, meticulously engineered to meet milspec dimensions and deliver unparalleled performance. Crafted with...
    $4.28
  • A1armory AR15 Takedown Pivot Pin Detent Set-www.A1Armory.com

    A1armory AR15 Takedown/Pivot Pin Detent Set

    $1.79
    AR15 Pivot Pin & Takedown Pin Detents     Perfect for replacing lost parts or stocking up for future builds, these AR15 Pivot Pin & Takedown Pin Detents offer reliability and precision. Ideal for sellers and builders alike, these...
    $1.79
  • 100 Bulk Wholesale AR15 Magazine Catch Spring

    100 Quantity AR15 Magazine Catch Springs

    $31.49
    100 Bulk Wholesale AR15 Magazine Catch Spring       For those who demand reliability and performance in every build or repair, our Mil-Spec AR-15 Magazine Catch Springs are the perfect solution. Designed with precision and durability in...
    $31.49
  • 10 Pack AR-15 Buffer Retaining Spring

    10 Pack AR-15 Buffer Retaining Spring

    $3.83
    10 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
  • ar15 bolt catch detent spring lower part ar15 bolt catch detent spring lower part

    10 Pack AR15 Bolt Catch Springs

    $6.98
    AR-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
  • AR15 BOLT CATCH ROLL PIN lower rifle parts for bolt catch assembly

    10 Pack AR15 Bolt Catch Roll Pins

    $4.28
    AR15 / M16 Bolt Catch Roll Pin 10 Pack       Fits all standard AR15/M16 sized bolts Phosphate finish for durability and corrosion resistance Manufactured to mil-spec dimensions 100% USA Made Comes in pack of...
    $4.28