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  1. Platform
    AR-15
  2. Barrel Length
    16"
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  1. Aero Precision 6 items
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Thread Pattern
  1. 1/2x28 72 items
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Platform
  1. AR-10 26 items
  2. AR-15 109 items
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Caliber
  1. 22 ARC 3 items
  2. 22 Long Rifle 1 item
  3. 223 Remington 52 items
  4. 223 Wylde 15 items
  5. 300 AAC Blackout 10 items
  6. 350 Legend 4 items
  7. 45 Auto (ACP) 4 items
  8. 458 Socom 1 item
  9. 5.56mm NATO 64 items
  10. 5.7 x 28mm 1 item
  11. 6mm ARC 7 items
  12. 6.5 Grendel 1 item
  13. 7.62 x 39mm 2 items
  14. 9mm Luger 9 items
Attachment Type
  1. KeyMod 1 item
  2. MLOK 36 items
  3. Picatinny 7 items
Handguard Length
  1. 4" 7 items
  2. 7" 3 items
  3. 8.9" 1 item
  4. 9" 1 item
  5. 10" 8 items
  6. 12" 1 item
  7. 12.25" 2 items
  8. 13.5" 2 items
  9. 15" 21 items
  10. 16" 2 items
  11. Carbine Length 1 item
  12. Mid Length 1 item
Handguard Style
  1. Free Float 29 items
Upper Type
  1. Pistol 4 items
  2. Rifle 36 items
Options
  1. W/ BCG & CH 41 items
  2. W/O BCG & CH 6 items
Barrel Length
  1. 4" 5 items
  2. 4.5" 6 items
  3. 5" 18 items
  4. 5.25" 1 item
  5. 5.5" 1 item
  6. 6" 2 items
  7. 6.5" 3 items
  8. 7" 8 items
  9. 7.5" 13 items
  10. 8" 11 items
  11. 8.3" 3 items
  12. 8.5" 4 items
  13. 9" 4 items
  14. 9.2" 1 item
  15. 10" 12 items
  16. 10.3" 4 items
  17. 10.5" 23 items
  18. 11" 1 item
  19. 11.3" 2 items
  20. 11.5" 5 items
  21. 12" 3 items
  22. 12.3" 1 item
  23. 12.5" 9 items
  24. 13.7" 2 items
  25. 13.9" 4 items
  26. 14.5" 17 items
  27. 14.7" 3 items
  28. 16" 109 items
  29. 16.1" 16 items
  30. 16.25" 2 items
  31. 16.325" 1 item
  32. 16.5" 2 items
  33. 17.7" 2 items
  34. 18" 35 items
  35. 20" 25 items
  36. 21" 2 items
  37. 22" 3 items
  38. 24" 4 items
Material
  1. 416R Stainless Steel 23 items
  2. 4150 Chrome Moly Vanadium 18 items
  3. Aluminum 20 items
  4. Carbon Fiber / Steel 2 items
  5. Chrome Moly Venadium Steel 15 items
  6. Stainless Steel 7 items
  7. Steel 5 items
Inventory
  1. In Stock 69 items
  2. Out of Stock 40 items
Customer Rating
  1. 5
    3 items
  2. 3
    & up     4 items
  3. 2
    & up     5 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
    TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    $399.99 $264.99 $299.99 Save $135.00
  2. TacFire AR-15 Blowback .45 ACP 1:16 4140 Chrome Moly Steel Barrel - 5/8x24
    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
  3. FN AR-15 5.56 NATO 1:7 CMV CHF CL Barrel
    FN AR-15 5.56 NATO 1:7 CMV CHF CL Barrel
    $399.99 $269.99 $289.99 Save $130.00
  4. 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
  5. 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
  6. 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
  7. TacFire AR-15 .223 / 5.56 Upper Receiver
    TacFire AR-15 .223 / 5.56 Upper Receiver
    (1)
    $299.99 $259.99 $299.99 Save $40.00
  8. Ballistic Advantage Premium Black Series AR-15 6mm ARC 1:7 SS Barrel
    Ballistic Advantage Premium Black Series AR-15 6mm ARC 1:7 SS Barrel
    $245.99 $275.99 $154.99 $184.99 Save $101.00
  9. Panzer Arms AR57 ULT AR-15 Steel 5.7x28mm Upper Receiver w/ M-LOK Handguard
    Panzer Arms AR57 ULT AR-15 Steel 5.7x28mm Upper Receiver w/ M-LOK Handguard
    $644.99 $599.99 $619.99 Save $45.00
  10. TacFire AR-15 9mm Upper Receiver
    TacFire AR-15 9mm Upper Receiver
    $314.99 $259.99 $279.99 Save $55.00
  13. TacFire AR-15 Blowback 9mm 1:10 4150 Chrome Moly Vanadium Barrel - 1/2x36
    TacFire AR-15 Blowback 9mm 1:10 4150 Chrome Moly Vanadium Barrel - 1/2x36
    $109.99 $64.99 $84.99 Save $45.00
  14. 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
  15. TacFire AR-15 .45 ACP Unassembled Upper Receiver Kit
    TacFire AR-15 .45 ACP Unassembled Upper Receiver Kit
    $449.99 $269.99 $274.99 Save $180.00
  16. TacFire AR-15 .300 Blackout Unassembled Upper Receiver Kit
    TacFire AR-15 .300 Blackout Unassembled Upper Receiver Kit
    $499.99 $259.99 $269.99 Save $240.00
  17. 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
  18. 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
  19. TacFire AR-15 .45 ACP Upper Receiver
    TacFire AR-15 .45 ACP Upper Receiver
    (1)
    $399.99 $279.99 $289.99 Save $120.00
  21. 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
  22. Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    $205.99 $220.99 $129.99 $139.99 Save $81.00
  23. 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
  24. PROOF Research AR-15 .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
  26. Ballistic Advantage Modern Series AR-15 Mid-Length Gas 5.56 1:7 CMV Pencil Barrel
    Ballistic Advantage Modern Series AR-15 Mid-Length Gas 5.56 1:7 CMV Pencil Barrel
    $170.99 $180.99 $161.99 $171.99 Save $9.00
  28. TacFire AR-15 9mm Unassembled Upper Receiver Kit
    TacFire AR-15 9mm Unassembled Upper Receiver Kit
    $399.99 $259.99 Save $140.00
  32. 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
  33. PROOF Research AR-15 .300 BLK Stainless Steel Barrel
    PROOF Research AR-15 .300 BLK Stainless Steel Barrel
    $629.99 $749.99 $569.99 $649.99 Save $100.00
  34. 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
  35. TacFire AR-15 Pistol-Length Gas .300 Blackout 1:8 Nitride Barrel
    TacFire AR-15 Pistol-Length Gas .300 Blackout 1:8 Nitride Barrel
    $101.99 $109.99 $79.99 $104.99 Save $25.00
  38. Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Out of stock
    $692.99 $659.99 Save $33.00
  39. Faxon Firearms Duty Series AR-15 .300 Blackout 1:8 4150 CMV Barrel
    Faxon Firearms Duty Series AR-15 .300 Blackout 1:8 4150 CMV Barrel
    $160.99 $173.99 $148.99 $160.99 Save $13.00
  40. Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 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
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