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Gun Parts

Whether you’re looking for a quality trigger upgrade for your Glock® pistol or AR-style carbine, an ergonomic pistol grip for your sporting rifle, drop-in magwell upgrade, or an ergonomic pistol brace, we at GunMag Warehouse offer a wide selection of gun parts and upgrades from top-selling brands like SB Tactical®, Magpul®, Tyrant Designs®, Sig Sauer®, and more. Shop our full collection of gun parts today!

  1. TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    $399.99 $264.99 $299.99 Save $135.00
  2. TacFire AR-15 .223 / 5.56 Upper Receiver
    TacFire AR-15 .223 / 5.56 Upper Receiver
    $299.99 $259.99 $299.99 Save $40.00
  3. Ballistic Advantage Premium Black AR-15 Mid-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ .750 Lo Pro Gas Block
    Ballistic Advantage Premium Black AR-15 Mid-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ .750 Lo Pro Gas Block
    $245.99 $134.99 $139.99 Save $111.00
  4. TacFire AR-15 Carbine-Length Gas .223 / 5.56 1:8 Nitride Barrel
    TacFire AR-15 Carbine-Length Gas .223 / 5.56 1:8 Nitride Barrel
    $115.99 $119.99 $69.99 $84.99 Save $50.00
  5. Ballistic Advantage Modern Series AR-15 5.56 1:7 CMV Barrel
    Ballistic Advantage Modern Series AR-15 5.56 1:7 CMV Barrel
    $125.99 $195.99 $69.99 $99.99 Save $96.00
  6. PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    $629.99 $749.99 $569.99 $649.99 Save $100.00
  7. Primary Weapons Systems UXR Elite .223 Wylde Conversion Kit
    Primary Weapons Systems UXR Elite .223 Wylde Conversion Kit
    $575.99 $439.99 Save $136.00
  8. PROOF Research AR-15 6mm ARC 1:7.5 Stainless Steel Barrel
    PROOF Research AR-15 6mm ARC 1:7.5 Stainless Steel Barrel
    $749.99 $649.99 Save $100.00
  9. PROOF Research AR-15 6mm ARC 1:7.5 Carbon Fiber-Wrapped Barrel
    PROOF Research AR-15 6mm ARC 1:7.5 Carbon Fiber-Wrapped Barrel
    $1,149.99 $999.99 Save $150.00
  10. Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .750 Lo Pro Gas Block
    Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .750 Lo Pro Gas Block
    Out of stock
    $205.99 $235.99 $194.99 $223.99 Save $12.00
  11. Primary Weapons Systems UXR Elite .300 Blackout Conversion Kit
    Primary Weapons Systems UXR Elite .300 Blackout Conversion Kit
    $575.99 $499.99 Save $76.00
  12. Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .625 Lo Pro Gas Block
    Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .625 Lo Pro Gas Block
    $220.99 $245.99 $209.99 $232.99 Save $13.00
  13. Ballistic Advantage Classic Series AR-15 Carbine-Length Gas 5.56 1:7 CMV CL Barrel
    Ballistic Advantage Classic Series AR-15 Carbine-Length Gas 5.56 1:7 CMV CL Barrel
    $180.99 $185.99 $109.99 Save $76.00
  14. Ballistic Advantage Premium AR-15 Mid-Length Gas .223 Wylde 1:8 SS Barrel w/ .750 Lo Pro Gas Block
    Ballistic Advantage Premium AR-15 Mid-Length Gas .223 Wylde 1:8 SS Barrel w/ .750 Lo Pro Gas Block
    $245.99 $260.99 $124.99 $139.99 Save $121.00
  15. Ballistic Advantage Modern Series AR-15 Pistol-Length Gas .300 BLK 1:7 CMV Barrel
    Ballistic Advantage Modern Series AR-15 Pistol-Length Gas .300 BLK 1:7 CMV Barrel
    $155.99 $180.99 $84.99 $99.99 Save $81.00
  16. Ballistic Advantage Premium Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    Ballistic Advantage Premium Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    $190.99 $300.99 $124.99 $149.99 Save $151.00
  17. Ballistic Advantage Modern AR-10 .308 Win 1:10 CMV Barrel
    Ballistic Advantage Modern AR-10 .308 Win 1:10 CMV Barrel
    $199.99 $250.99 $199.99 $237.99 Save $13.00
  18. Faxon Firearms Match Series AR-15 .338 ARC SS Barrel
    Faxon Firearms Match Series AR-15 .338 ARC SS Barrel
    $218.99 $224.99 $201.99 $207.99 Save $17.00
  19. Faxon Firearms Duty Series AR-15 5.56 NATO 1:8 4150 CMV Barrel
    Faxon Firearms Duty Series AR-15 5.56 NATO 1:8 4150 CMV Barrel
    $163.99 $191.99 $150.99 $176.99 Save $15.00
  20. Ballistic Advantage Premium Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Ballistic Advantage Premium Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Out of stock
    $255.99 $265.99 $242.99 $251.99 Save $14.00
  21. Ballistic Advantage Premium Black Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Ballistic Advantage Premium Black Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Out of stock
    $255.99 $265.99 $242.99 $251.99 Save $14.00
  22. Ballistic Advantage Classic Series AR-15 5.56 1:7 CHF CL Barrel w/ Lo Pro Gas Block
    Ballistic Advantage Classic Series AR-15 5.56 1:7 CHF CL Barrel w/ Lo Pro Gas Block
    Out of stock
    $300.99 $330.99 $285.99 $313.99 Save $17.00
  23. Primary Weapons Systems UXR Elite .308 Winchester Conversion Kit
    Primary Weapons Systems UXR Elite .308 Winchester Conversion Kit
    Out of stock
    $575.99 $499.99 Save $76.00
  24. Primary Weapons Systems UXR Elite 7.62x39 Conversion Kit
    Primary Weapons Systems UXR Elite 7.62x39 Conversion Kit
    Out of stock
    $575.99 $499.99 Save $76.00
  25. Primary Weapons Systems UXR Elite 8.6 Blackout Conversion Kit
    Primary Weapons Systems UXR Elite 8.6 Blackout Conversion Kit
    Out of stock
    $575.99 $499.99 Save $76.00