AR-15 / AR-10 Parts

AR-15 / AR-10 Parts

Looking for the best AR platform parts on the Internet? You're here. Take a look and let's get to work. 

We build AR platform rifles weekly for some very discerning customers. We only build with what we sell, and we only sell what works. Leverage our experience in building or upgrading your AR platform and buy with confidence. 

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  • Out of Stock
    BRT - 8.0" OPTIMUM PDW Hammer Forged Chrome Lined Barrel - 300BLK side BRT - 8.0" OPTIMUM PDW Hammer Forged Chrome Lined Barrel - 300BLK extension

    BRT - 8.0" OPTIMUM PDW Hammer Forged Chrome Lined Barrel - 300BLK

    Black River Tactical

    MSRP: $295.00
    $280.95
    Black River Tactical BRT 8" OPTIMUM HF CL Barrel Black River Tactical Hammer Forged Chrome Lined Barrels are designed and built to meet the needs of serious shooters who demand the highest levels of accuracy and durability along with seamless...
    MSRP: $295.00
    $280.95
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    $280.95
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  • Out of Stock
    HK MR762 14.7" M-LOK Handguard FDE (51000225)

    HK MR762 14.7" M-LOK Handguard FDE

    Heckler & Koch

    $339.00
    HK MR762 14.7" M-LOK Handguard FDE Manufacturer:Heckler and Koch (HK) Fits:MR762 Color:FDE Mounting System:M-LOK
    $339.00
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    Sons of Liberty Gun Works - EXO3, MLOK, 15" AR15 Handguard w/QD Socket , Black Finish
Sons of Liberty Gun Works - EXO3, MLOK, 15" AR15 Handguard w/QD Socket , Black Finish

    Sons of Liberty Gun Works - EXO3, MLOK, 15" AR15 Handguard w/QD Socket , Black Finish

    Sons Of Liberty Gun Works

    MSRP: $190.00
    $185.50
    Sons of Liberty Gun Works, EXO3, MN-LOK Handguard, Nitride Finish, Black, 15", Fits AR-15, with Quick Detach Socket Third Generation EXO3 MLOK Handguard. Hard Anodized Black Coating. Includes Barrel Nut and QD Socket. Features: Receiver Indexing...
    MSRP: $190.00
    $185.50
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    Heckler & Koch HK416 11" Handguard (50233617) Heckler & Koch HK416 11" Handguard (50233617)

    Heckler & Koch HK416 11" Handguard Black

    Heckler & Koch

    MSRP: $419.00
    $399.00
    HK416 11" HANDGUARD MR556A1/HK416 extended picatinny handguard. The 11-inch rail allows for longer sight radius and more rail space. Rifles come factory standard with 9 inch picatinny rail.
    MSRP: $419.00
    $399.00
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    $399.00
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    PWS - MK109 MOD 2-M 300 Blk Upper Receiver 9.75" 1:8" Twist w/ Triad Muzzle Device (18-2M109UB0B) PWS - MK109, MOD 2-M, Upper Receiver, 9.75" Barrel, 1:8" Twist, PWS Triad Muzzle Device, 300 Blackout, Black (18-2M109UB0B)

    PWS - MK109 MOD 2-M 300 Blk Upper Receiver 9.75" 1:8" Twist w/ Triad Muzzle Device

    Primary Weapons Systems

    MSRP: $1,349.95
    $1,299.95
    Primary Weapons Systems, MK109, MOD 2-M, Upper Receiver, Fits AR-15, 300 Blackout, 9.75" Barrel, 1:8" Twist, PWS Triad Muzzle Device, 8.9" PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle The PWS MK1...
    MSRP: $1,349.95
    $1,299.95
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    PRI - Douglas 5.56 Stainless Steel Barrel 18" - 1-8 Twist ( 05-556-18D)

    PRI - Douglas 5.56 Stainless Steel Barrel 18" - 1-7 Twist

    Precision Reflex, Inc

    $489.00
    PRI – Douglas 5.56 Stainless Steel Barrel 18" – 1-7 Twist (05-556-18D-7) Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps.  Barrel is a medium SPR profiled barrel, threaded with a 1/2-28...
    $489.00
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    PRI - Douglas 5.56 Stainless Steel Barrel 18" - 1-8 Twist ( 05-556-18D)

    PRI Douglas 5.56 Stainless Steel Barrel 18" 1-8 Twist

    Precision Reflex, Inc

    $489.00
    PRI - Douglas 5.56 Stainless Steel Barrel 18" - 1-8 Twist ( 05-556-18D) Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-8 twist and M4 feed ramps.  Barrel is a medium SPR profiled barrel, threaded with a 1/2-28 thread for...
    $489.00
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    PRI - 308 Gas Buster® Charging Handle – Military Latch - FDE Finish PRI - 308 Gas Buster® Charging Handle – Military Latch - FDE Finish

    PRI - 308 Gas Buster® Charging Handle - Military Latch - FDE Finish

    Precision Reflex, Inc

    $92.50
    PRI – 308 Gas Buster® Charging Handle – Military Latch - FDE Finish SR25 Charging Handle with Big Military Latch for the family of 308 AR's Armalite, DPMS, KAC - M-84L Gas Buster® charging handle – featuring the big latch...
    $92.50
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    SOLGW Loyal 9 Stripped Lower Receiver - Black, LOYAL9-STRIPPED-LOWER, LOYAL9, 691821704972

    SOLGW Loyal 9 Stripped Lower Receiver - Black

    Sons Of Liberty Gun Works

    MSRP: $150.00
    $142.50
    SOLGW Loyal 9 Stripped Lower Receiver - Black The Sons of Liberty Gun Works Loyal 9 Stripped Lower Receiver is built for shooters who demand uncompromising quality, precision machining, and true duty‑grade durability. Crafted from mil‑spec 7075‑T6...
    MSRP: $150.00
    $142.50
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    $142.50
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    OCL - M4 Collar, Raw Heat Treat OCL - M4 Collar, Raw Heat Treat

    OCL - M4 Collar, Raw Heat Treat

    Otter Creek Labs

    $45.00
    Otter Creek Labs - M4 Collar, Raw Heat Treat Locating collar for M4 spec barrels and ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel with a raw heat treat finish.
    $45.00
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    LMT® - .308 receiver extension tube (LMP259C)

    LMT® - .308 receiver extension tube

    LMT Defense

    $59.00
    LMT® .308 receiver extension tubeLMT offers its 308 receiver extension, or buffer tube, for sale to customers for their builds. This tube is approx. 3/4″ longer than a standard AR-15 style buffer tube. This allows for usage of standard length...
    $59.00
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    LMT - MRP/AR15 Buffer Tube Kit (LM556BTK)

    LMT - MRP/AR15 Buffer Tube Kit

    LMT Defense

    $97.00
    LMT DEFENSE - MRP/AR15 Buffer Tube Kit LMT kept our builders in mind with this essential kit for your next project. The LM556BTK is ready to install in your stripped lower. Kit ships with a dry film lubed, Mil-Spec 6 position tube, standard buffer...
    $97.00
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