Gun Parts

MidwayUSA offers an immense selection of rifle, handgun, and shotgun parts to serve all your gun repairs, rebuilds, and upgrades. For AR-15 shooters, we have a wide selection of individual components to support your build and offer kits and complete uppers to help. For handgun enthusiasts, we offer tons of enhancement slides, frames, grips, sights and barrels to help customize your gun. Browse our large selection of magazines to find compatible models with varying capacity to support end uses at home or on the range. And shotgunners will find barrels, magazine tube extensions, sights, stocks and forends, and triggers to customize guns for hunting, competition, or home defense.

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Customer Favorites in Gun Parts

  1. AR-STONER AR-15 Optics Ready Upper Receiver Assembly 5.56x45mm 16" Barrel 1 in 8" Twist

    AR-STONER AR-15 Optics Ready Upper Receiver Assembly 5.56x45mm 16" ...

    Sale
    $199.99
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    Regular Price: $339.99 Save $140.00 (41%)
    Available
  2. Magpul PMAG M2 MOE Magazine AR-15 223 Remington, 5.56x45mm, 300 AAC Blackout 30-Round Black Pack ...

    Magpul PMAG M2 MOE Magazine AR-15 223 Remington, 5.56x45mm, 300 AAC...

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    Regular Price: $123.00
    Available
  3. SB Tactical SBA3 Pistol Stabilizing Brace Collapsible AR-15

    SB Tactical SBA3 Pistol Stabilizing Brace Collapsible AR-15

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    Regular Price: $129.99
    Available
  4. Agency Arms Barrel Standard Line Glock 9mm Luger 1 in 10" Twist Stainless Steel

    Agency Arms Barrel Standard Line Glock 9mm Luger 1 in 10" Twist Sta...

    Clearance
    $72.13 - $72.15
    Regular Price: $160.00 Save up to $87.87 (54%)
    Available
  5. Remington Barrel Remington 870 Express 12 Gauge 3" 18-1/2" Rem Choke Bead Sight

    Remington Barrel Remington 870 Express 12 Gauge 3" 18-1/2" Rem Chok...

    $189.99
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    Available
  6. New Arrival Banner
    Swenson Barrel AK-47 7.62x39mm 1 in 9.45" Twist 16.3" Threaded Muzzle Melonite

    Swenson Barrel AK-47 7.62x39mm 1 in 9.45" Twist 16.3" Threaded Muzz...

    Sale
    $74.99
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    Regular Price: $99.99 Save $25.00 (25%)
    Available
  7. 100 Straight Jones Stock Adjuster Pad Plate for Recoil Pad

    100 Straight Jones Stock Adjuster Pad Plate for Recoil Pad

    $72.99
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    Available
  8. AR-STONER AR-15 A3 Upper Receiver Assembly 6.5 Grendel 20" Barrel with 15" Standard M-Lok Handguard

    AR-STONER AR-15 A3 Upper Receiver Assembly 6.5 Grendel 20" Barrel w...

    Sale
    $349.99
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    Regular Price: $449.99 Save $100.00 (22%)
    Available
  9. Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 20" Barrel

    Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 20" Barrel

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    $429.99
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    Regular Price: $679.99 Save $250.00 (36%)
    Available
  10. AR-STONER AR-15 Carbine Kit with Complete Upper Assembly 5.56x45mm NATO 1 in 9" Twist 16" Barrel

    AR-STONER AR-15 Carbine Kit with Complete Upper Assembly 5.56x45mm ...

    Sale
    $359.99
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    Regular Price: $449.99 Save $90.00 (20%)
    Available
  11. Timney Rifle Trigger Remington 700, 40X with Safety 1-1/2 to 4 lb

    Timney Rifle Trigger Remington 700, 40X with Safety 1-1/2 to 4 lb

    Clearance
    $113.50 - $121.07
    Regular Price: $149.95 - $159.95 Save up to $38.88 (24%)
    Available
  12. CMMG Rimfire Conversion Kit AR-15 Magazine 22 Long Rifle Stainless Steel

    CMMG Rimfire Conversion Kit AR-15 Magazine 22 Long Rifle Stainless ...

    Sale
    $149.99
    Regular Price: $189.99 Save up to $40.00 (21%)
    Available
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