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  1. Thread Pattern
    1/2x28
  2. Platform
    AR-15
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  1. Aero Precision 7 items
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  4. Battle Arms Development 4 items
  5. Christensen Arms 1 item
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Thread Pattern
  1. .578x28 1 item
  2. 1/2x28 116 items
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Platform
  1. AR-15 116 items
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  7. Glock 73 items
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Caliber
  1. 22 ARC 10 items
  2. 22 Long Rifle 6 items
  3. 223 Remington 63 items
  4. 223 Wylde 19 items
  5. 300 AAC Blackout 1 item
  6. 350 Legend 5 items
  7. 5.56mm NATO 79 items
  8. 5.7 x 28mm 5 items
  9. 6mm ARC 1 item
  10. 9mm Luger 5 items
Attachment Type
  1. KeyMod 2 items
  2. MLOK 36 items
  3. Picatinny 7 items
Handguard Length
  1. 4" 6 items
  2. 5.5" 2 items
  3. 7" 2 items
  4. 8.9" 1 item
  5. 9" 1 item
  6. 9.6" 1 item
  7. 10" 4 items
  8. 12" 1 item
  9. 12.25" 2 items
  10. 13.5" 2 items
  11. 15" 21 items
  12. 15.25" 2 items
  13. Carbine Length 1 item
  14. Mid Length 1 item
Handguard Style
  1. Free Float 38 items
Upper Type
  1. Pistol 12 items
  2. Rifle 38 items
Options
  1. W/ BCG & CH 41 items
  2. W/O BCG & CH 7 items
Barrel Length
  1. 4.5" 2 items
  2. 5" 8 items
  3. 5.5" 1 item
  4. 6.5" 2 items
  5. 7" 2 items
  6. 7.5" 6 items
  7. 8" 3 items
  8. 8.3" 1 item
  9. 9" 2 items
  10. 9.2" 1 item
  11. 10" 2 items
  12. 10.3" 2 items
  13. 10.5" 12 items
  14. 11" 1 item
  15. 11.3" 2 items
  16. 11.5" 3 items
  17. 12" 1 item
  18. 12.3" 1 item
  19. 12.5" 4 items
  20. 13.7" 2 items
  21. 13.9" 4 items
  22. 14.5" 12 items
  23. 14.7" 3 items
  24. 16" 73 items
  25. 16.1" 11 items
  26. 16.25" 1 item
  27. 16.325" 1 item
  28. 16.5" 1 item
  29. 17.7" 2 items
  30. 18" 20 items
  31. 20" 12 items
  32. 22" 3 items
  33. 24" 4 items
Material
  1. 416R Stainless Steel 28 items
  2. 4150 Chrome Moly Vanadium 13 items
  3. Aluminum 26 items
  4. Chrome Moly Venadium Steel 21 items
  5. Stainless Steel 8 items
  6. Steel 6 items
Inventory
  1. In Stock 63 items
  2. Out of Stock 53 items
Customer Rating
  1. 5
    6 items
  2. 4
    & up     7 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. Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $865.99 $824.99 Save $41.00
  2. FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    Out of stock
    $6,399.99 $5,899.99 Save $500.00
  3. Rosco Purebred AR-15 .223 Wylde Stainless Steel Barrel
    Rosco Purebred AR-15 .223 Wylde Stainless Steel Barrel
    Out of stock
    $221.99 $240.99 $198.99 $225.99 Save $24.00
  4. CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard
    CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard
    $899.99 $749.99 $834.99 Save $150.00
  5. CMMG BANSHEE Mk4 AR-15 4.5" CM .22 LR Upper Receiver w/ EML4 4" M-LOK Handguard
    CMMG BANSHEE Mk4 AR-15 4.5" CM .22 LR Upper Receiver w/ EML4 4" M-LOK Handguard
    $724.99 $589.99 $637.99 Save $135.00
  7. Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $724.99 $692.99 Save $32.00
  9. Rosco Bloodline AR-15 16" 5.56 NATO 1:7 CMV Barrel
    Rosco Bloodline AR-15 16" 5.56 NATO 1:7 CMV Barrel
    $169.99 $186.99 $152.99 $169.99 Save $17.00
  10. Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $865.99 $824.99 Save $41.00
  11. 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
  12. CMMG AR-15 .22 LR 1:16 CM Barrel w/ Collar Kit
    CMMG AR-15 .22 LR 1:16 CM Barrel w/ Collar Kit
    Out of stock
    $199.99 $249.99 $174.99 $199.99 Save $50.00
  16. CMMG AR-15 .22 LR 1:16 CM Barrel w/ Bolt Carrier Kit
    CMMG AR-15 .22 LR 1:16 CM Barrel w/ Bolt Carrier Kit
    Out of stock
    $324.99 $374.99 $259.99 $299.99 Save $75.00
  17. Faxon Firearms Match Series AR-15 Rifle-Length Gas 22 ARC 1:7 Stainless Steel Barrel
    Faxon Firearms Match Series AR-15 Rifle-Length Gas 22 ARC 1:7 Stainless Steel Barrel
    $236.99 $310.99 $218.99 $286.99 Save $24.00
  18. Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    $999.99 $920.99 Save $79.00
  20. CMMG AR-15 5.7x28 CM Barrel w/ Bolt Carrier Kit
    CMMG AR-15 5.7x28 CM Barrel w/ Bolt Carrier Kit
    $474.99 $524.99 $359.99 $414.99 Save $115.00
  21. 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 $348.99 Save $27.00
  23. FN Button-Rifled AR-15 5.56 NATO 1:7 CMV Barrel
    FN Button-Rifled AR-15 5.56 NATO 1:7 CMV Barrel
    $299.99 $238.99 $279.99 Save $61.00
  25. TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    Out of stock
    $399.99 $279.99 $349.99 Save $120.00
  32. Odin Works AR-15 9mm 1:10 Stainless Steel Barrel
    Odin Works AR-15 9mm 1:10 Stainless Steel Barrel
    Out of stock
    $144.99 $234.99 $136.99 $222.99 Save $12.00
  35. Ballistic Advantage Premium AR-15 22" Rifle+1-Length Gas .22 ARC 1:7 SS Barrel
    Ballistic Advantage Premium AR-15 22" Rifle+1-Length Gas .22 ARC 1:7 SS Barrel
    Out of stock
    $295.99 $325.99 $280.99 $308.99 Save $17.00
  39. Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
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