Lower Parts

Lower Parts

Build the lower of your dreams with only the best quality AR15 lower parts!  

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  • Magpul UCS (Universal Carbine Stock) Side Folding Stock - 1913 Picatinny - Black, MAG1441-BLK, 840815149262 Magpul UCS (Universal Carbine Stock) Side Folding Stock - 1913 Picatinny - Black, MAG1441-BLK, 840815149262

    Magpul UCS (Universal Carbine Stock) Side Folding Stock - 1913 Picatinny

    Magpul Industries

    MSRP: $219.95
    $208.95
    Magpul UCS (Universal Carbine Stock) Side Folding Stock - 1913 Picatinny When adaptability meets rugged reliability, the result is the Magpul UCS—Universal Carbine Stock. Engineered for firearms with a rear-mounted M1913 Picatinny rail, the UCS...
    MSRP: $219.95
    $208.95
    Qty in Cart: 0
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    MSRP: $219.95
    $208.95
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  • Out of Stock
    LBE Unlimited AR15 Buffer Tube Kit - H1 Buffer, H1BUFKT, 706612408097

    LBE Unlimited AR15 Buffer Tube Kit - H1 Buffer

    LBE Unlimited

    MSRP: $69.99
    $63.99
    LBE Unlimited AR15 Buffer Tube Kit - H1 Buffer Whether you're assembling a new rifle or refreshing an old workhorse, the LBE Unlimited Buffer Tube Kit delivers uncompromising performance and rugged dependability. Designed to meet the demands of serious...
    MSRP: $69.99
    $63.99
    Qty in Cart: 0
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    MSRP: $69.99
    $63.99
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  • Colt High Wear Parts Repair Kit - AR15/M4, SPK403980, 098289600455

    Colt High Wear Parts Repair Kit - AR15/M4

    Colt

    $24.00
    Colt High Wear Parts Repair Kit - AR15/M4 Maintain peak reliability with the Colt’s Manufacturing High Wear Parts Repair Kit for AR15/M4 platforms. Engineered to keep your rifle running smoothly through intense use, this kit includes the most...
    $24.00
    Qty in Cart: 0
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    $24.00
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  • Colt Lower Field Repair Kit - AR15/M4, SPK403981, 098289600462

    Colt Field Repair Kit - AR15/M4

    Colt

    $44.00
    Colt Lower Field Repair Kit - AR15/M4 Prepare your AR15/M4 for anything with the Colt’s Manufacturing Field Repair Kit—an essential collection of mil-spec replacement parts designed to keep your rifle running in peak condition. Whether...
    $44.00
    Qty in Cart: 0
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    $44.00
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  • Colt Lower Parts Kit - AR15/M4, SPK99501, 098289600479

    Colt Lower Parts Kit - AR15/M4

    Colt

    MSRP: $119.00
    $109.99
    Colt Lower Parts Kit - AR15/M4 Get your AR build one step closer to complete with the Colt’s Manufacturing Lower Parts Kit for AR15/M4 platforms. Precision-engineered by one of the most trusted names in firearms, this kit includes the essential...
    MSRP: $119.00
    $109.99
    Qty in Cart: 0
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    MSRP: $119.00
    $109.99
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  • Wilson Combat Two-Stage Tactical Trigger Unit - Heavy Duty Flat Face - AR-15/AR-10, TR-TTU-H2-F, 810129408850 Wilson Combat Two-Stage Tactical Trigger Unit - Heavy Duty Flat Face - AR-15/AR-10, TR-TTU-H2-F, 810129408850

    Wilson Combat Two-Stage Tactical Trigger Unit - Heavy Duty Flat Face - AR-15/AR-10

    Wilson Combat

    $195.95
    Wilson Combat Two-Stage Tactical Trigger Unit - Heavy Duty Flat Face - AR-15/AR-10 Take control of your AR with the Wilson Combat TR-TTU Heavy Duty Flat Trigger—the ultimate tactical upgrade for shooters who demand speed, precision, and rock-solid...
    $195.95
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    $195.95
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  • Out of Stock
    SOLGW x FORWARD CONTROLS DESIGN - Ambi Lower Receiver - Black 2025 Model, FCD-AMBI-LR, 785939519372 SOLGW x FORWARD CONTROLS DESIGN - Ambi Lower Receiver - Black 2025 Model, FCD-AMBI-LR, 785939519372

    SOLGW x FORWARD CONTROLS DESIGN - Ambi Lower Receiver - Black 2025 Model

    Sons Of Liberty Gun Works

    MSRP: $330.00
    $313.50
    SOLGW x FORWARD CONTROLS DESIGN - Ambi Lower Receiver - Black The 2025 LRF ambidextrous lower receiver, a collaboration between Sons of Liberty Gun Works (SOLGW) and Forward Controls Design (FCD), has been enhanced with a series of thoughtful upgrades...
    MSRP: $330.00
    $313.50
    Qty in Cart: 0
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    MSRP: $330.00
    $313.50
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  • Magpul ACS Carbine Stock MIL-Spec Gray, MAG370-GRY, 873750001005 Magpul ACS Carbine Stock MIL-Spec Gray, MAG370-GRY, 873750001005

    Magpul ACS Carbine Stock MIL-Spec Gray

    Magpul Industries

    MSRP: $94.95
    $90.20
    Magpul ACS Carbine Stock MIL-Spec Gray The Magpul ACS (Adaptable Carbine/Storage) MIL-SPEC Stock is a drop-in replacement buttstock, designed for AR15/M16 carbines using mil-spec receiver extension tubes. With an anti-snag profile, supplemental friction...
    MSRP: $94.95
    $90.20
    Qty in Cart: 0
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    MSRP: $94.95
    $90.20
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  • KNS Stock Adapter with Flange - Black, AR-MCX-FLANGE, 853906008492

    KNS Stock Adapter with Flange - Black

    KNS

    MSRP: $60.00
    $51.00
    KNS Stock Adapter with Flange - Black The AR/MCX Stock Adapter allows the user to mount a picatinny-style stock attachment (such as the SIG MPX folding stock or brace) in place of an AR15 style buffer tube. Many firearms utilize the buffer tube...
    MSRP: $60.00
    $51.00
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    MSRP: $60.00
    $51.00
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  • Fortis Manufacturing Billet Magazine Catch and Release, AR15-BMCR-BLK, AR15-BMCR-FDE, AR15-BMCR-ODG, 855476008384, 810103340176, 850015927928 Fortis Manufacturing Billet Magazine Catch and Release, AR15-BMCR-BLK, AR15-BMCR-FDE, AR15-BMCR-ODG, 855476008384, 810103340176, 850015927928

    Fortis Manufacturing Billet Magazine Catch and Release

    Fortis Mfg.

    MSRP: $24.95
    $23.70
    Fortis Manufacturing Billet Magazine Catch and Release The Fortis Billet Mag Catch & Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC...
    MSRP: $24.95
    $23.70
    Qty in Cart: 0
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    MSRP: $24.95
    $23.70
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  • Luth-AR Pistol Grip - A1 Luth-AR Pistol Grip - A1

    Luth-AR Pistol Grip - A1

    Luth-AR

    MSRP: $15.25
    $14.34
    Luth-AR Pistol Grip - A1 A1 Pistol Grip perfect for your Retro build. Features: Made of Dupont Zytel 30% glass filled nylon   **Hardware not included  
    MSRP: $15.25
    $14.34
    Qty in Cart: 0
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    MSRP: $15.25
    $14.34
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  • PWS Ratchet Lock Castle Nut and Endplate Set - MOD 2

    PWS Ratchet Lock Castle Nut and Endplate Set - MOD 2

    Primary Weapons Systems

    MSRP: $49.95
    $39.95
    PWS Ratchet Lock Castle Nut and Endplate Set - MOD 2 The Ratchet Lock Castle Nut End Plate set works with mil-spec OR commercial buffer tubes and eliminates the need for staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End Plate...
    MSRP: $49.95
    $39.95
    Qty in Cart: 0
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    MSRP: $49.95
    $39.95
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