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.

  • 2 AR-15 Stainless Knurled Gas Block Set Screws

    2 Knurled Gas Block Stainless Set Screws

    MSRP: $3.49
    $3.14
    2 AR-15 Stainless Knurled Gas Block Set Screws       Upgrade your AR-15’s gas system with A1Armory’s Stainless Knurled Gas Block Set Screws, designed for reliable performance and secure fitment. Proudly made in the USA, these...
    MSRP: $3.49
    $3.14
  • AR-15 Cerakote Red Mil Spec End Plate

    AR-15 Cerakote Red Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote Red Mil Spec End Plate       Transform your AR-15 with the Red Mil Spec End Plate, the perfect blend of durability, precision, and style. Proudly made in the USA, this high-quality end plate ensures your firearm performs at...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote Pink Mil Spec End Plate

    AR-15 Cerakote Pink Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote Pink Mil Spec End Plate       Transform your AR-15 with the Pink Mil Spec End Plate, the perfect blend of durability, precision, and style. Proudly made in the USA, this high-quality end plate ensures your firearm performs...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote FDE Mil Spec End Plate

    AR-15 Cerakote FDE Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote FDE Mil Spec End Plate       Transform your AR-15 with the FDE Mil Spec End Plate, the perfect blend of durability, precision, and style. Proudly made in the USA, this high-quality end plate ensures your firearm performs at...
    MSRP: $19.99
    $13.49
  • AR-15 Custom Cerakote Gold Splatter Pistol Buffer Tube

    AR-15 Custom Cerakote Gold Splatter Pistol Buffer Tube

    MSRP: $59.99
    $40.49
    AR-15 Custom Cerakote Gold Splatter Pistol Buffer Tube       Custom Cerakote Splatter Pistol Buffer Tube, a perfect blend of durability, functionality, and unique style. Crafted from premium T6-6061 aluminum, this buffer tube ensures...
    MSRP: $59.99
    $40.49
  • AR-15 Custom Cerakote Glacier Silver Splatter Pistol Buffer Tube

    AR-15 Custom Cerakote Glacier Silver Splatter Pistol Buffer Tube

    MSRP: $59.99
    $40.49
    AR-15 Custom Cerakote Glacier Silver Splatter Pistol Buffer Tube       Custom Cerakote Splatter Pistol Buffer Tube, a perfect blend of durability, functionality, and unique style. Crafted from premium T6-6061 aluminum, this buffer tube...
    MSRP: $59.99
    $40.49
  • AR-15 Custom Cerakote Gold Silver Splatter M4 Buttstock

    AR-15 Custom Cerakote Gold Splatter M4 Buttstock

    MSRP: $109.99
    $53.99
    AR-15 Custom Cerakote Gold Silver Splatter M4 Buttstock         Upgrade your rifle’s look and performance with our AR-15 Custom Cerakote Gold Splatter M4 Buttstock. Built tough and...
    MSRP: $109.99
    $53.99
  • AR-15 Custom Cerakote Glacier Silver Splatter M4 Buttstock

    AR-15 Custom Cerakote Glacier Silver Splatter M4 Buttstock

    MSRP: $109.99
    $53.99
    AR-15 Custom Cerakote Glacier Silver Splatter M4 Buttstock         Upgrade your rifle’s look and performance with our AR-15 Custom Cerakote Glacier Silver Splatter M4 Buttstock...
    MSRP: $109.99
    $53.99
  • On Sale
    AR-15 Cerakote ODG Mil Spec End Plate

    AR-15 Cerakote ODG Mil Spec End Plate

    MSRP: $19.99
    Now: $8.09
    Was: $14.99
    AR-15 Cerakote ODG Mil Spec End Plate       Transform your AR-15 with the ODG Mil Spec End Plate, the perfect blend of durability, precision, and style. Proudly made in the USA, this high-quality end plate ensures your firearm performs at...
    MSRP: $19.99
    Now: $8.09
    Was: $14.99
  • AR-15 Cerakote Yellow Mil Spec End Plate

    AR-15 Cerakote Lemon Zest Yellow Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote Yellow Mil Spec End Plate       Upgrade your rifle with style and durability! The AR-15 Cerakote Yellow Mil-Spec End Plate is the perfect finishing touch for any custom build or upgrade, combining rugged steel construction...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote Hunter Orange Mil Spec End Plate

    AR-15 Cerakote Hunter Orange Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote Hunter Orange Mil Spec End Plate       Upgrade your rifle with style and durability! The AR-15 Cerakote Orange Mil-Spec End Plate is the perfect finishing touch for any custom build or upgrade, combining rugged steel...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote Gold Mil Spec End Plate

    AR-15 Cerakote Gold Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote Gold Mil Spec End Plate       Upgrade your rifle with style and durability! The AR-15 Cerakote Gold Mil-Spec End Plate is the perfect finishing touch for any custom build or upgrade, combining rugged steel construction with...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote Burnt Bronze Mil Spec End Plate

    AR-15 Cerakote Burnt Bronze Mil Spec End Plate

    MSRP: $19.99
    $13.49
    AR-15 Cerakote Burnt Bronze Mil Spec End Plate       Upgrade your AR-15 with both style and strength. Our Cerakote Burnt Bronze Mil-Spec End Plate is built tough and finished for maximum durability, giving your rifle the performance and...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote BlackSilver Splattered A2 Grip

    AR-15 Cerakote Black/Silver Splattered A2 Grip

    MSRP: $24.99
    $22.49
    AR-15 Cerakote Black/Silver Splattered A2 Grip       Elevate the look and feel of your rifle or pistol with the AR-15 Cerakote Black Silver Splattered A2 Grip. Built for durability and style, this A2 grip...
    MSRP: $24.99
    $22.49
  • AR-15 Black Beavertail Pistol Grip

    AR-15 Black Beavertail Pistol Grip

    MSRP: $18.99
    $10.79
    AR-15 Black Beavertail Pistol Grip       Enhance your shooting comfort and control with the AR-15 Black Beavertail Pistol Grip. Engineered for performance and reliability, this deluxe grip is crafted from rugged high-density polymer fiber,...
    MSRP: $18.99
    $10.79
  • AR-15 Cerakote Burnt Bronze Beavertail Pistol Grip

    AR-15 Cerakote Burnt Bronze Beavertail Pistol Grip

    MSRP: $19.99
    $17.99
    AR-15 Cerakote Burnt Bronze Beavertail Pistol Grip       Elevate your AR-15’s performance and aesthetics with our deluxe Cerakote Burnt Bronze Beavertail Pistol Grip. Expertly crafted from high-density polymer fiber, this ergonomic...
    MSRP: $19.99
    $17.99
  • AR-15 Extended Black Bolt Catch

    AR-15 Black Extended Bolt Catch Release

    MSRP: $19.99
    $17.99
    AR-15 Extended Black Bolt Catch       Elevate your AR-15's performance and ergonomics with the Extended Black Bolt Catch. Specifically engineered for speed and comfort, this high-quality bolt catch ensures faster, smoother, and...
    MSRP: $19.99
    $17.99
  • AR-15 Enhanced FDEBolt Catch Assembly

    AR-15 Cerakote FDE Enhanced Bolt Catch Assembly

    MSRP: $29.99
    $17.99
    AR-15 Enhanced FDE Bolt Catch Assembly       Elevate your AR-15's reliability and ease of operation with our precision-engineered Cerakote FDE Bolt Catch Assembly. Crafted meticulously from gun-quality steel, this robust component is...
    MSRP: $29.99
    $17.99
  • AR-15 Enhanced Gold Bolt Catch Assembly

    AR-15 Cerakote Gold Enhanced Bolt Catch Assembly

    MSRP: $29.99
    $17.99
    AR-15 Enhanced Gold Bolt Catch Assembly       Elevate your AR-15's reliability and ease of operation with our precision-engineered Cerakote Gold Bolt Catch Assembly. Crafted meticulously from gun-quality steel, this robust component is...
    MSRP: $29.99
    $17.99
  • AR-15 Enhanced White Bolt Catch Assembly

    AR-15 White Enhanced Bolt Catch Assembly

    MSRP: $29.99
    $17.99
    AR-15 Enhanced White Bolt Catch Assembly       Elevate your AR-15's reliability and ease of operation with our precision-engineered Cerakote White Bolt Catch Assembly. Crafted meticulously from gun-quality steel, this robust component is...
    MSRP: $29.99
    $17.99
  • AR-15 enhanced Black Bolt Catch Assembly

    AR-15 Black Enhanced Bolt Catch Assembly

    MSRP: $19.99
    $17.99
    AR-15 Black Bolt Catch Assembly       Elevate your AR-15's reliability and ease of operation with our precision-engineered Black Bolt Catch Assembly Guard. Crafted meticulously from gun-quality steel, this robust component is designed...
    MSRP: $19.99
    $17.99
  • AR-15 Dark Silver Dual Safety Selector Lever

    AR-15 Dark Silver Dual Safety Selector Lever

    MSRP: $32.99
    $22.49
    AR-15 Dark Silver Dual Safety Selector Lever       Upgrade your AR-15 for superior performance, safety, and versatility with our premium Dark Silver Ambidextrous Dual Safety Selector Lever. Engineered to provide ease of use for both right...
    MSRP: $32.99
    $22.49
  • AR-15 Cerakote Sniper Grey Ambidextrous Safety Selector V.2

    AR-15 Cerakote Sniper Grey Ambidextrous Safety Selector V.2

    MSRP: $39.99
    $31.46
    AR-15 Cerakote Sniper Grey Ambidextrous Safety Selector V.2     Elevate your rifle’s functionality and appearance with our premium AR-15 Cerakote Sniper Grey Ambidextrous Safety Selector V.2. Expertly engineered to deliver...
    MSRP: $39.99
    $31.46
  • AR-15 Cerakote ODG Ambidextrous Safety Selector V.2

    AR-15 Cerakote ODG Ambidextrous Safety Selector V.2

    MSRP: $39.99
    $31.46
    AR-15 Cerakote ODG Ambidextrous Safety Selector V.2       Upgrade your rifle's ergonomics, safety, and aesthetics with the Ambidextrous Safety Selector V.2 finished in durable and stylish Cerakote Olive Drab Green (ODG)...
    MSRP: $39.99
    $31.46
  • AR-15 parts Cerakote Hunter Orange Ambidextrous Safety Selector V.2

    AR-15 Cerakote Hunter Orange Ambidextrous Safety Selector V.2

    MSRP: $39.99
    $31.46
    AR-15 Cerakote Hunter Orange Ambidextrous Safety Selector V.2       Enhance your AR-15's functionality and appearance with the Cerakote Hunter Orange Ambidextrous Safety Selector V.2. Engineered for versatility and durability,...
    MSRP: $39.99
    $31.46
  • AR-15 Safety Selector Lever with Detent & Spring

    AR-15 Safety Selector Lever with Detent & Spring

    MSRP: $19.99
    $11.69
    AR-15 Safety Selector Lever with Detent & Spring       Ensure reliable, consistent fire control with this Mil-Spec AR-15 Safety Selector Lever, complete with a selector detent and spring for easy installation. Designed for precision...
    MSRP: $19.99
    $11.69
  • AR-15 Cerakote Black Gold Splattered A2 Grip

    AR-15 Cerakote Black Gold Splattered A2 Grip

    MSRP: $24.99
    $22.49
    AR-15 Cerakote Black Gold Splattered A2 Grip       Elevate the look and feel of your rifle or pistol with the AR-15 Cerakote Black Gold Splattered A2 Grip. Built for durability and style, this A2 grip delivers...
    MSRP: $24.99
    $22.49
  • AR-15 Pink Mil Spec Castle Nut

    AR-15 Pink Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Pink Mil Spec Castle Nut       Upgrade your rifle’s lower receiver with a reliable and stylish touch. This AR-15 Pink Mil-Spec Castle Nut offers rock-solid retention for your buffer tube while adding a custom Cerakote finish...
    MSRP: $12.99
    $11.69
  • AR-15 Olive Drab Green ODG Mil Spec Castle Nut

    AR-15 Olive Drab Green ODG Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Olive Drab Green ODG Mil Spec Castle Nut       Upgrade your rifle’s lower receiver with a reliable and stylish touch. This AR-15 ODG Mil-Spec Castle Nut offers rock-solid retention for your buffer tube while adding a custom...
    MSRP: $12.99
    $11.69
  • AR-15 Hunter Orange Mil Spec Castle Nut

    AR-15 Hunter Orange Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Hunter Orange Mil Spec Castle Nut       Upgrade your rifle’s lower receiver with a reliable and stylish touch. This AR-15 Orange Mil-Spec Castle Nut offers rock-solid retention for your buffer tube while adding a custom...
    MSRP: $12.99
    $11.69
  • AR-15 FDE Mil Spec Castle Nut

    AR-15 Flat Dark Earth FDE Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 FDE Mil Spec Castle Nut       Upgrade your rifle’s lower receiver with a reliable and stylish touch. This AR-15 FDE Mil-Spec Castle Nut offers rock-solid retention for your buffer tube while adding a custom Cerakote finish that...
    MSRP: $12.99
    $11.69
  • AR-15 Burnt Bronze Mil Spec Castle Nut

    AR-15 Burnt Bronze Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Burnt Bronze Mil Spec Castle Nut       Upgrade your rifle’s lower receiver with a reliable and stylish touch. This AR-15 Burnt Bronze Mil-Spec Castle Nut offers rock-solid retention for your buffer tube while adding a custom...
    MSRP: $12.99
    $11.69
  • AR-15 White Mil Spec Castle Nut

    AR-15 White Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 White Mil Spec Castle Nut       Give your rifle a clean, customized touch with the AR-15 White Mil-Spec Castle Nut. Built for performance and durability, this castle nut is precision-machined from rugged tool steel and finished in a...
    MSRP: $12.99
    $11.69
  • AR-15 Lemon Zest Yellow Mil Spec Castle Nut

    AR-15 Lemon Zest Yellow Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Lemon Zest Yellow Mil Spec Castle Nut       Bring bold style and solid reliability to your AR-15 build with the AR-15 Lemon Zest Yellow Mil-Spec Castle Nut. Crafted from rugged 4140 tool steel and finished in a vibrant Cerakote Lemon...
    MSRP: $12.99
    $11.69
  • AR15 Red Mil Spec Castle Nut

    AR15 Red Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Red Mil Spec Castle Nut     Secure your buffer tube with confidence — and a splash of bold, custom color. The AR-15 Red Mil-Spec Castle Nut is built to deliver reliable retention for your buffer tube assembly while adding a...
    MSRP: $12.99
    $11.69
  • AR15 Robins Egg Blue Mil Spec Castle Nut

    AR15 Robins Egg Blue Mil Spec Castle Nut

    MSRP: $12.99
    $11.69
    AR-15 Robins Egg Blue Mil Spec Castle Nut     Secure your buffer tube with confidence — and a splash of bold, custom color. The AR-15 Robins Egg Mil-Spec Castle Nut is built to deliver reliable retention for your buffer tube assembly...
    MSRP: $12.99
    $11.69
  • AR15 Custom Cerakote Splatter Sniper GreyPink Lower Parts Kit

    AR15 Custom Cerakote Sniper Grey/Pink Splatter Lower Parts Kit

    MSRP: $129.99
    $98.09
    AR15 Custom Cerakote Splatter Sniper Grey/Pink Lower Parts Kit       AR-15 Custom Cerakote Splatter Sniper Grey/Pink Lower Parts Kit Overview: Transform your AR-15 rifle into a unique masterpiece with our Custom Cerakote Splatter Sniper...
    MSRP: $129.99
    $98.09
  • AR-15 TRUMP Engraved Magazine Catch Kit

    AR15 Laser Engraved "TRUMP" Magazine Catch Kit

    MSRP: $19.99
    $13.49
    AR-15 "TRUMP" Engraved Magazine Catch Kit       Make a statement every time you reload. The AR-15 “TRUMP” Engraved Magazine Catch Kit brings together battle-ready reliability and bold American pride, crafted with premium...
    MSRP: $19.99
    $13.49
  • AR-15 Cerakote Red Extended Takedown Pin Set

    AR-15 Cerakote Red Extended Takedown Pin Set

    MSRP: $24.99
    $17.99
    AR-15 Cerakote Red Extended Takedown Pin Set       Upgrade your AR-15 with our Cerakote Red Extended Takedown Pin Set, engineered for both enhanced usability and a bold custom look. Whether you're...
    MSRP: $24.99
    $17.99