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.

  • OD Green AR-15 Enforcer Skeletonized Colored Pistol Grip

    Timber Creek Outdoors AR-15 ODG Enforcer Pistol Grips

    MSRP: $99.99
    $76.49
    Timber Creek ODG AR-15 Enforcer Pistol Grip         Upgrade your AR with a grip that delivers superior control, rugged durability, and standout aesthetics. The Timber Creek Outdoors ODG Enforcer Pistol Grip is engineered for shooters...
    MSRP: $99.99
    $76.49
  • Timber Creek Flat Dark Earth AR-15 Enforcer Skeletonized Pistol Grip

    Timber Creek Outdoors AR-15 Flat Dark Earth Enforcer Pistol Grips

    MSRP: $99.99
    $76.49
    Timber Creek Flat Dark Earth AR-15 Enforcer Skeletonized Pistol Grip       Enhance your AR-15’s performance and appearance with the Timber Creek Outdoors FDE Enforcer Pistol Grip — a premium, lightweight grip engineered for...
    MSRP: $99.99
    $76.49
  • TCO Blue AR-15 Enforcer Skeletonized Colored Pistol Grip

    Timber Creek Outdoors AR-15 Blue Enforcer Pistol Grips

    MSRP: $99.99
    $76.49
    Timber Creek Blue AR-15 Ultralight Enforcer Pistol Grip       Bring your rifle to life with the Timber Creek Outdoors Blue Enforcer Pistol Grip — a perfect blend of lightweight design, precision machining, and vibrant aesthetics...
    MSRP: $99.99
    $76.49
  • AR-15 Enhanced Rainbow Oilslick PVD Trigger Guard

    AR-15 Enhanced Rainbow Chameleon PVD Trigger Guard

    MSRP: $39.99
    $35.99
    AR-15 Enhanced Rainbow Chameleon Oilslick PVD Trigger Guard       Upgrade your AR-15 build with the Enhanced Rainbow Oilslick PVD Trigger Guard, a precision-engineered accessory designed to provide both exceptional performance and...
    MSRP: $39.99
    $35.99
  • Trinity Force Sand Stock w QR Sling Adapter Buffer Kit

    AR-15 Alpha Sand Stock Buffer Tube Kit

    $21.59
    AR Platform Alpha Sand Stock Buffer Tube Kit       Upgrade your AR-15 with the Alpha Sand Stock Buffer Tube Kit — a premium, all-in-one buffer assembly designed for durability, functionality, and tactical aesthetics. This kit is...
    $21.59
  • Trinity Force Omega Mil-Spec Adjustable Stock w QR Sling Adapter Buffer Kit

    Omega Mil-Spec Adjustable Stock Buffer Kit

    $43.19
    Trinity Force Omega Mil-Spec Adjustable Stock w/ QR Sling Adapter Buffer Kit       Included: 6 position buffer tube end plate castle nut 3oz buffer weight carbine spring Features: Comes with a quick detach (QD) sling swivel Very sturdy...
    $43.19
  • AR15 Breach 1.0 Pistol Brace Buffer Kit

    AR15 Breach 1.0 Pistol Brace Buffer Kit

    $58.49
    AR15 Breach 1.0 Pistol Brace Buffer Kit     The Breach 1.0 is an ATF approved pistol brace designed to be low profile and easy to install for the end-user. It is built to fit AR-15 pistol buffer tubes with a diameter of 1.25″. The Breach...
    $58.49
  • AR-15 Black Mil-Spec Adjustable Stock w Sling Adapter-www.A1Armory.com

    AR-15 LE-Stock w/ Sling Adapter Buffer Kit

    $40.49
    AR-15 Black LE Adjustable Stock w/ Sling Adapter Buffer Kit     This is a great budget stock for a new build or replacement part. This AR15 ButtStock has 6 positions and comes with the QD Sling adapter/swivel built into the bottom for fast...
    $40.49
  • Trinity Force Alpha Stock Buffer Kit

    AR-15 Trinity Force Alpha Stock Buffer Kit

    $53.99
    Trinity Force Alpha Stock Buffer Kit     The Alpha Stock is versatile enough to work with any AR build. It features a low profile adjustment latch, double injected rubber cheek rest, and slick sided profile. The butt-pad profile is angled to...
    $53.99
  • On Sale
    AR-15 Cobra Stock MK2 Buffer Kit

    AR-15 Cobra Stock MK2 Buffer Kit

    Now: $49.49
    Was: $64.99
    AR-15 Cobra Stock MK2 Buffer Kit   Included: Cobra Stock Mil-Spec 6 position Buffer Tube Carbine Buffer Spring 3oz Carbine Buffer Castle Nut End Plate Stock Features: Patent pending locking system QD sockets / 1.5″ Sling loops Snag-free...
    Now: $49.49
    Was: $64.99
  • Phase5 Blue Angled Textured Magazine Release Button

    Phase5 Blue Angled Textured Magazine Release Button

    $8.99
    Phase5 Blue Angled Textured Magazine Release Button     The Phase 5™ PMR is a CNC machined 6061-T6 billet aluminum magazine release button. Easy to install, the PMR is a drop in component that replaces the Mil-Spec magazine release...
    $8.99
  • Anderson Manufacturing Mil-Spec Carbine Receiver Buffer Kit

    Anderson Mil-Spec Carbine Receiver Buffer Kit

    $35.96
    Anderson Manufacturing Mil-Spec Carbine Receiver Buffer Kit       This Anderson MIL-SPEC Stock Hardware (Receiver Extension & Buffer) Kit includes an extruded 7075-T6 aluminum receiver extension (buffer tube) with a durable hardcoat...
    $35.96
  • AR-15 Silver Extended Enhanced Takedown Pin Set

    AR-15 Silver Extended Enhanced Takedown Pin Set

    MSRP: $29.99
    $22.49
    AR-15 Silver Extended Enhanced Takedown Pin Set       Strong and lightweight is the name of the game for these new A1Armory Anodized Takedown and Pivot Pins. Coming in at only 0.3oz in weight, these come Extended with the Pivot Pin...
    MSRP: $29.99
    $22.49
  • On Sale
    LBE Unlimited Buffer Retainer Pin, pack of 10

    LBE Unlimited Buffer Retainer Pin, pack of 10

    Now: $23.39
    Was: $31.49
    LBE Unlimited Buffer Retainer Pin, pack of 10   Machined to milspec dimensions Black Nitride coated 100% USA Made Comes in pack of 10
    Now: $23.39
    Was: $31.49
  • AR-15 6 Position Mil-Spec Buffer Tube

    AR-15 Black Anodized 6 Position Mil-Spec Buffer Tube

    $12.59
    A1Armory AR-15 Black Anodized 6 Position Mil-Spec Buffer Tube       Introducing the AR-15 Black Anodized 6 Position Mil-Spec Buffer Tube, a premium firearm accessory meticulously crafted for optimal performance and durability...
    $12.59
  • AR-15 Mil Spec Buffer Tube Enhanced Lower Parts Kit Combo

    AR-15 Mil Spec Buffer Tube Enhanced Lower Parts Kit Combo

    $43.19
    AR-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
  • Phase5 Grey Angled Textured Magazine Release Button

    Phase5 Grey Angled Textured Magazine Release Button

    $8.99
    Phase5 Grey Angled Textured Magazine Release Button     The Phase 5™ PMR is a CNC machined 6061-T6 billet aluminum magazine release button. Easy to install, the PMR is a drop in component that replaces the Mil-Spec magazine release...
    $8.99
  • Timber Creek Orange QD End Plate Combo

    Timber Creek Orange QD End Plate Combo

    MSRP: $29.99
    $20.69
    Timber Creek Orange QD End Plate Combo         Take your rifle to the next level with the Timber Creek Outdoors Orange QD End Plate Combo. Engineered for performance, style, and convenience, this premium upgrade...
    MSRP: $29.99
    $20.69
  • AR-15 Enhanced End Plate Castle Nut QD Set

    AR-15 Enhanced TF End Plate & Presma Castle Nut QD Set

    MSRP: $24.99
    $17.09
    AR-15 Enhanced TF End Plate & Presma Castle Nut QD Set       Upgrade your AR platform with a precision-machined, high-strength Castle Nut and End Plate QD Set designed for superior performance and reliability. Whether you’re...
    MSRP: $24.99
    $17.09
  • AR15 Cerakote Red Extended Bolt Catch Release

    AR15 Cerakote Red Extended Bolt Catch Release

    MSRP: $34.99
    $25.19
    AR15 Cerakote Red Extended Bolt Catch Release       Enhance your AR15’s functionality and aesthetics with the Cerakote Red Extended Bolt Catch Release — a lightweight, ergonomic upgrade designed for faster reloads and superior...
    Availability:
    Usually Ships In 24 Hours
    MSRP: $34.99
    $25.19
  • AR15 Blue Tactical Enhanced Bad Lever Bolt Catch Extender

    AR15 Blue Tactical Enhanced Bad Lever Extender

    $31.49
    AR-15 Blue Tactical Enhanced Bad Lever Bolt Catch Extender       Upgrade your AR-15 with the Blue Tactical Bad Lever Bolt Catch Extender, engineered to enhance your shooting experience through improved ergonomics, speed, and control...
    Availability:
    Usually Ships In 24 Hours
    $31.49
  • AR15 Gold Tactical Enhanced Battery Assist Device aka Bad Lever

    AR15 Gold Tactical Enhanced Bolt Catch Bad Lever Extender

    $31.46
    AR Platform Anodized Gold Extended Bad Lever       Product Description: Introducing our Gold Anodized Extended Bolt Catch Release Bad Lever, designed to revolutionize your firearm's functionality and streamline your shooting experience...
    Availability:
    Usually Ships In 24 Hours
    $31.46
  • Odin Works Blue Zulu Stock Color Bundle

    Odin Works Blue Zulu Stock Color Bundle Kit

    $431.99
    Odin Works Blue Zulu Stock Color Bundle-FREE SHIPPING!       Zulu Stock 15" MLOK O2 Lite forend Mag Release, Safety Lever and XCH Charging Handle all in Blue!                    ...
    $431.99
  • Timber Creek AR15 Mil Spec red anodized Buffer Tubes

    Timber Creek AR15 Red Mil Spec Buffer Tube

    $31.49
    Timber Creek AR15 Red Mil Spec Buffer Tube       Timber Creek AR15 Red Mil-Spec Buffer Tube features a striking red anodized finish, providing not only an extra layer of protection against corrosion and wear but also adding a touch of...
    $31.49
  • AR15AR10 Stainless Steel Push Button Safety with Spring & Pin

    A1Armory AR15/AR10 Stainless Steel Push Button Safety Selector

    MSRP: $29.99
    $21.59
    AR15/AR10 Stainless Steel Push Button Speed Safety with Spring & Pin        A1Armory AR15/AR10 Stainless Steel Push Button Speed Safety with Spring & Pin – a precision-engineered upgrade that revolutionizes your firearm...
    MSRP: $29.99
    $21.59
  • A1Armory AR15AR10 Black Carbon Steel Push Button Speed Safety with Spring & Pin

    A1Armory Ambi Speed Push Button Safety Selector

    MSRP: $29.99
    $21.59
    AR15/AR10 Black Carbon Steel Push Button Speed Safety with Spring & Pin       A1Armory AR15/AR10 Black Push Button Speed Safety with Spring & Pin – a precision-engineered upgrade that revolutionizes your firearm control...
    MSRP: $29.99
    $21.59
  • On Sale
    A1Armory AR15 Reduced Power Trigger Kit

    A1Armory AR15 Reduced Power Trigger Kit

    Now: $8.78
    Was: $14.75
    A1Armory AR15 Reduced Power Trigger Kit       Mil-spec AR-15 triggers typically have an 8 to 9 pound trigger pull with factory springs. Utilizing A1Armory's Reduced Power Trigger Spring Kit should achieve a trigger pull reduction of 2 to 4...
    Now: $8.78
    Was: $14.75
  • A1Armory AR15AR10 Extra Power Hammer Spring

    A1Armory AR15/AR10 XP Extra Power Hammer Spring

    $4.73
    A1Armory AR15/AR10 Extra Power Hammer Spring         Enhanced Ignition Reliability: The A1Armory AR15/AR10 XP Extra Power Hammer Spring is specifically designed to address common ignition problems that may arise when...
    $4.73
  • A1Armory AR15 50% Reduced Power Disconnector Spring

    10-AR15 50% Reduced Power Disconnector Spring

    $26.96
    10-AR15 50% Reduced Power Disconnector Spring       AR-15 50% Reduced Power Disconnector Springs – 10 PackUpgrade your trigger performance with this set of reduced power disconnector springs, engineered to deliver a smoother, lighter...
    $26.96
  • AR15 25% Reduced Power Trigger Spring

    A1Armory AR15 25% Reduced Power Trigger Spring

    $5.09
    AR15 25% Reduced Power Trigger Spring     Reduced Power Trigger Springs are aproximately 25% lighter than the factory mil-spec trigger spring to help improve trigger pull. For Use With: COLT AR15/M16/M4/CAR15 RP TRIGGER SPRING...
    $5.09
  • On Sale
    Odin Works Red Zulu Stock Color Bundle

    Odin Works Red Zulu Stock Color Bundle Kit

    Now: $422.99
    Was: $507.00
    Odin Works Red Zulu Stock Color Bundle-FREE SHIPPING!       Zulu Stock 15" MLOK O2 Lite forend Mag Release, Safety Lever and XCH Charging Handle all in Red!                      ...
    Now: $422.99
    Was: $507.00
  • On Sale
    Odin Works FDE Zulu Stock Color Bundle

    Odin Works FDE Zulu Stock Color Bundle Kit

    Now: $416.69
    Was: $506.99
    Odin Works (FDE) Flat Dark Earth Zulu Stock Color Bundle-FREE SHIPPING!     Zulu Stock 15" MLOK O2 Lite forend Mag Release, Safety Lever and XCH Charging Handle all in Flat Dark Earth!                ...
    Now: $416.69
    Was: $506.99
  • Odin Works Black Zulu Stock Color Bundle Kit

    Odin Works Black Zulu Stock Color Bundle Kit

    $431.99
    Odin Works Black Zulu Stock Color Bundle-FREE SHIPPING!     Zulu Stock 15" MLOK O2 Lite forend Mag Release, Safety Lever and XCH Charging Handle all in BLACK!                      ...
    $431.99
  • AR15 We The People Engraved Trigger Guard

    AR15 We The People Engraved Trigger Guard

    MSRP: $14.99
    $8.99
    AR-15 We The People Laser Engraved Trigger Guard         Show your patriotism with every shot. The AR-15 “We The People” Laser Engraved Trigger Guard is the perfect upgrade for builders who want...
    MSRP: $14.99
    $8.99
  • AR-15 Spartan Molon Labe Engraved Trigger Guard

    AR-15 Spartan Molon Labe Custom Engraved Trigger Guard

    MSRP: $14.99
    $8.99
    AR-15 "Spartan Molon Labe" Engraved Trigger Guard       Make a bold statement on your AR-15 with the Spartan "Molon Labe" Engraved Trigger Guard — a symbol of defiance and warrior spirit. Crafted for patriots and serious builders...
    MSRP: $14.99
    $8.99
  • AR15 Don't Mess With Texas Engraved Trigger Guard

    AR-15 Don't Mess With Texas Custom Engraved Trigger Guard

    MSRP: $14.99
    $8.99
    AR15 Don't Mess With Texas Engraved Trigger Guard     6061 ALUMINUM Comes with Hardware Manufactured and Engraved In USA                                  ...
    MSRP: $14.99
    $8.99
  • AR-15 7.62x39 Engraved Trigger Guard

    AR-15 7.62x39 Engraved Trigger Guard

    MSRP: $14.99
    $8.99
    AR-15 7.62x39 Laser Engraved Trigger Guard         6061 ALUMINUM Comes with Hardware Manufactured and Engraved In USA OTHER TRIGGER GUARDS/TRIGGERS                    ...
    MSRP: $14.99
    $8.99
  • AR15 300 Blackout Laser Engraved Trigger Guard

    AR-15 300 Blackout Engraved Trigger Guard

    MSRP: $14.99
    $8.99
    AR15 .300 Blackout Laser Engraved Trigger Guard       Upgrade your rifle with precision and style using this laser-engraved .300 BLACKOUT Enhanced Trigger Guard. Built for both functionality and aesthetics, this guard is CNC machined and...
    MSRP: $14.99
    $8.99
  • AR-15 Nylon Tipped Receiver Tension Set Screw

    AR-15 1/4X28 Nylon Tipped Tension Set Screw

    MSRP: $2.99
    $1.70
    AR-15 Nylon Tipped Tension Set Screw 1/4X28       AR-15 Nylon Tipped Receiver Tension Set Screw – 1/4x28 Thread | Made in the USA ✅ Compatible with all Mil-Spec AR-15 lower receivers✅ Eliminates upper/lower receiver wobble✅...
    MSRP: $2.99
    $1.70