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  27. 5.03" 1 item
  28. 5.09" 1 item
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  35. 5.75" 1 item
  36. 5.8" 1 item
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  38. 6.61" 1 item
  39. 7" 7 items
  40. 7.5" 12 items
  41. 8" 5 items
  42. 8.3" 1 item
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  45. 10" 9 items
  46. 10.3" 3 items
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  48. 10.5" 17 items
  49. 11.5" 3 items
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  51. 12.3" 1 item
  52. 12.5" 8 items
  53. 13.7" 2 items
  54. 13.9" 3 items
  55. 14.5" 16 items
  56. 14.7" 2 items
  57. 16" 97 items
  58. 16.1" 15 items
  59. 16.25" 1 item
  60. 16.5" 1 item
  61. 16.75" 1 item
  62. 17.7" 1 item
  63. 18" 29 items
  64. 18.5" 7 items
  65. 20" 21 items
  66. 24" 3 items
  67. 26" 2 items
  68. 28" 3 items
Material
  1. 416R Stainless Steel 18 items
  2. 4150 Chrome Moly Vanadium 21 items
  3. Aluminum 17 items
  4. Carbon Fiber / Steel 1 item
  5. Chrome Moly Venadium Steel 12 items
  6. Stainless Steel 5 items
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Inventory
  1. In Stock 69 items
  2. Out of Stock 27 items
Customer Rating
  1. 5
    5 items
  2. 3
    & up     8 items
  3. 1
    & up     9 items

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!

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  1. TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit- 5"
    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 - 14.5"
    TacFire AR-15 .223 / 5.56 Upper Receiver
    (1)
    $299.99 $259.99 $299.99 Save $40.00
  5. FN AR-15 20" Rifle-Length Gas 5.56 NATO 1:7 CHF CL Barrel
    FN AR-15 5.56 NATO 1:7 CMV CHF CL Barrel
    $399.99 $269.99 $289.99 Save $130.00
  7. TacFire AR-15 .45 ACP Upper Receiver - 10"
    TacFire AR-15 .45 ACP Upper Receiver
    (2)
    $399.99 $279.99 $289.99 Save $120.00
  8. TacFire AR-10 308 / 7.62x51 Upper Receiver without Forward Assist - 16"
    TacFire AR-10 .308 / 7.62x51 Upper Receiver without Forward Assist
    $599.99 $369.99 Save $230.00
  9. TacFire AR-15 9mm Upper Receiver - 10"
    TacFire AR-15 9mm Upper Receiver
    (1)
    $314.99 $259.99 $279.99 Save $55.00
  10. TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit - 16"
    TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit
    (1)
    $699.99 $419.99 Save $280.00
  11. Ballistic Advantage Premium AR-15 20" Rifle-Length Gas .223 Wylde 1:8 QPQ Stainless Steel Barrel
    Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    $200.99 $270.99 $190.99 $256.99 Save $14.00
  12. PROOF Research AR-15 18" Rifle-Length Gas .223 Wylde 1:7 Carbon Fiber-Wrapped Barrel
    PROOF Research AR-15 .223 Wylde 1:7 Carbon Fiber-Wrapped Barrel
    $999.99 $1,149.99 $899.99 $999.99 Save $150.00
  14. TacFire AR-15 5" Micro-Length Gas .223 / 5.56 1:5 Nitride Barrel
    TacFire AR-15 5.56 NATO Stainless Steel Barrel
    $109.99 $119.99 $69.99 $84.99 Save $50.00
  18. Ballistic Advantage Premium Black AR-15 16" Mid-Length Gas .223 Wylde 1:8 Stainless Steel Barrel with Low 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 $232.99 Save $13.00
  19. Ballistic Advantage Premium Black Series AR-15 18" Rifle-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ OPS 12
    Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    $205.99 $220.99 $194.99 $209.99 Save $11.00
  20. Ballistic Advantage Modern AR-15 16" 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 $147.99 $171.99 Save $9.00
  21. Ballistic Advantage Classic AR-15 16" Carbine-Length Gas 5.56 NATO 1:7 CMV Barrel
    Ballistic Advantage Classic Series AR-15 Carbine-Length Gas 5.56 1:7 CMV CL Barrel
    $157.99 $185.99 $124.99 $175.99 Save $56.00
  22. Battle Arms Development AR-15 16" 9mm 1:10 Steel Barrel
    Battle Arms Development Lightweight PCC AR-15 9mm 1:10 CRMV Barrel
    $165.99 $149.99 Save $16.00
  23. Daniel Defense AR-15 16" 5.56 1:7 CHF CMV Barrel
    Daniel Defense AR-15 16" 5.56 1:7 CHF CMV Barrel
    $375.99 $394.99 $348.99 $365.99 Save $29.00
  24. Primary Weapons Systems UXR Elite .223 Wylde 14.5" Conversion Kit
    Primary Weapons Systems UXR Elite .223 Wylde Conversion Kit
    $575.99 $439.99 Save $136.00
  25. Faxon Firearms Integral AR-15 16" Mid-Length Gas 5.56 NATO 1:8 4150 CMV Barrel w/ Integral Flash Hider
    Faxon Firearms Integral AR-15 16" Mid-Length Gas 5.56 NATO 1:8 4150 CMV Barrel w/ Integral Flash Hider
    $261.99 $241.99 Save $20.00
  26. Faxon Firearms Duty Series AR-15 .300 Blackout 1:8 4150 CMV Barrel-10.5"-Pistol
    Faxon Firearms Duty Series AR-15 .300 Blackout 1:8 4150 CMV Barrel
    $160.99 $173.99 $148.99 $160.99 Save $13.00
  27. TacFire AR-15 .45 ACP Unassembled Upper Receiver Kit - 4"
    TacFire AR-15 .45 ACP Unassembled Upper Receiver Kit
    $449.99 $269.99 $274.99 Save $180.00
  28. TacFire AR-15 9mm Unassembled Upper Receiver Kit - 4"
    TacFire AR-15 9mm Unassembled Upper Receiver Kit
    $399.99 $259.99 Save $140.00
  30. TacFire AR-15 .300 Blackout Upper Receiver - 10"
    TacFire AR-15 .300 Blackout Upper Receiver
    (2)
    $309.99 $399.99 $254.99 $299.99 Save $145.00
  31. TacFire AR-10 .308 / 7.62x51mm Upper Receiver - 10"
    TacFire AR-10 .308 / 7.62x51mm Upper Receiver
    (1)
    $499.99 $354.99 $369.99 Save $145.00
  32. Faxon Firearms Duty Series AR-10 .308 WIN 1:10 4150 CMV Barrel -13.9"-Gunner-Mid
    Faxon Firearms Duty Series AR-10 .308 WIN 1:10 4150 CMV Barrel
    $236.99 $218.99 Save $18.00
  33. Faxon Firearms Duty Series AR-10 8.6 Blackout 1:3 4150 CMV Barrel-12"-Pistol
    Faxon Firearms Duty Series AR-10 8.6 Blackout 1:3 4150 CMV Barrel
    $238.99 $244.99 $219.99 $225.99 Save $19.00
  34. TacFire AR-15 Blow Back .45 ACP 1:16 4140 Chrome Moly Steel Barrel - 5/8x24 - 10.5"
    TacFire AR-15 Blowback .45 ACP 1:16 4140 Chrome Moly Steel Barrel - 5/8x24
    (1)
    $109.99 $79.99 $84.99 Save $30.00
  35. TacFire AR-15 Blow Back 9mm 1:10 4150 Chrome Moly Vanadium Barrel - 1/2x36 - 10.5"
    TacFire AR-15 Blowback 9mm 1:10 4150 Chrome Moly Vanadium Barrel - 1/2x36
    $109.99 $64.99 $84.99 Save $45.00
  36. TacFire AR-10 Mid-Length Gas .308 / 7.62x51 1:10 4150 Nitride Barrel - 16"
    TacFire AR-10 Mid-Length Gas .308 / 7.62x51 1:10 4150 Nitride Barrel
    $134.99 $111.99 Save $23.00
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