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Thread Pattern
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  2. 1/2x28 167 items
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  4. 5/8x24 60 items
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  6. Glock 55 items
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  13. Walther 3 items
Caliber
  1. 22 ARC 5 items
  2. 22 Long Rifle 11 items
  3. 223 Remington 48 items
  4. 223 Wylde 8 items
  5. 350 Legend 3 items
  6. 357 SIG 3 items
  7. 380 Auto (ACP) 1 item
  8. 5.56mm NATO 59 items
  9. 5.7 x 28mm 2 items
  10. 6mm ARC 1 item
  11. 9mm Luger 78 items
  12. 9x18 Makarov 1 item
Attachment Type
  1. KeyMod 2 items
  2. MLOK 23 items
  3. Picatinny 6 items
Handguard Length
  1. 4" 4 items
  2. 8.9" 1 item
  3. 9" 1 item
  4. 10" 2 items
  5. 12" 1 item
  6. 12.25" 1 item
  7. 13.5" 2 items
  8. 15" 16 items
  9. 15.25" 2 items
  10. Carbine Length 1 item
  11. Mid Length 1 item
Handguard Style
  1. Free Float 24 items
Upper Type
  1. Pistol 3 items
  2. Rifle 31 items
Options
  1. W/ BCG & CH 28 items
  2. W/O BCG & CH 6 items
Barrel Length
  1. 3.5" 1 item
  2. 3.68" 1 item
  3. 3.7" 1 item
  4. 3.76" 1 item
  5. 3.8" 1 item
  6. 3.9" 2 items
  7. 3.97" 1 item
  8. 4" 1 item
  9. 4.06" 1 item
  10. 4.3" 3 items
  11. 4.49" 3 items
  12. 4.5" 8 items
  13. 4.56" 1 item
  14. 4.60" 5 items
  15. 4.625" 1 item
  16. 4.8" 1 item
  17. 5" 15 items
  18. 5.03" 2 items
  19. 5.1" 1 item
  20. 5.31" 2 items
  21. 5.5" 4 items
  22. 5.75" 1 item
  23. 5.8" 1 item
  24. 7" 2 items
  25. 7.5" 4 items
  26. 8" 2 items
  27. 8.3" 1 item
  28. 9" 1 item
  29. 9.2" 1 item
  30. 10" 1 item
  31. 10.3" 2 items
  32. 10.5" 6 items
  33. 11" 1 item
  34. 11.3" 2 items
  35. 11.5" 3 items
  36. 12" 1 item
  37. 12.3" 1 item
  38. 12.5" 4 items
  39. 13.7" 2 items
  40. 13.9" 4 items
  41. 14.5" 11 items
  42. 14.7" 3 items
  43. 16" 61 items
  44. 16.1" 7 items
  45. 16.25" 1 item
  46. 16.325" 1 item
  47. 16.75" 1 item
  48. 17.7" 1 item
  49. 18" 12 items
  50. 18.5" 2 items
  51. 20" 9 items
  52. 22" 1 item
  53. 24" 3 items
Material
  1. 416R Stainless Steel 42 items
  2. 4150 Chrome Moly Vanadium 13 items
  3. Aluminum 21 items
  4. Chrome Moly Venadium Steel 19 items
  5. Stainless Steel 38 items
  6. Steel 16 items
Inventory
  1. In Stock 87 items
  2. Out of Stock 80 items
Customer Rating
  1. 5
    17 items
  2. 1
    & up     18 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 WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    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
  2. Lone Wolf Arms Dusk 19 1/2x28 Threaded Barrel for Gen 3 / 4 Glock 19 Pistols - BLK
    Lone Wolf Arms Dusk 19 1/2x28 Threaded Barrel for Gen 3 / 4 Glock 19 Pistols
    Out of stock
    $174.99 $159.99 Save $15.00
  3. Ballistic Advantage Premium Barrel with Bomber Fluting for Glock 17 Pistols with 1/2x28 TPI - BLK
    Ballistic Advantage Premium Barrel with Bomber Fluting for Glock 17 Pistols with 1/2x28 TPI
    $195.99 $175.99 Save $20.00
  4. 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
  6. Ballistic Advantage Performance AR-15 10.3" Carbine-Length Gas 5.56 1:7 CMV Barrel w/ 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
  8. Geissele Automatics Super Duty MOD1 AR-15 13.9" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard - BLK
    Geissele Automatics Super Duty MOD1 AR-15 13.9" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  9. Backup Tactical Threaded Barrel for Sig P320 Compact Pistols - BLK
    Backup Tactical Threaded Barrel for Sig P320 Compact Pistols
    $169.99 $154.99 Save $15.00
  12. Ballistic Advantage Performance AR-15 11.3" Carbine-Length Gas 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 AR-15 14.5" 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
  15. Ballistic Advantage Premium AR-15 16" Mid-Length Gas .223 Wylde 1:8 Stainless Steel QPQ Barrel with 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
  16. Ballistic Advantage Premium Series Fluted Barrel for Glock 17 Gen 5 - 1/2x28
    Ballistic Advantage Premium Barrel with Spiral Fluting for Gen 5 Glock 17 Pistols with 1/2x28 TPI
    $193.99 $215.99 $129.99 $193.99 Save $86.00
  17. Ballistic Advantage Premium Series Bomber Fluted Barrel for Gen 3-5 Glock 19 Pistols - 1/2x28
    Ballistic Advantage Premium Series Bomber Fluted Barrel for Gen 3-5 Glock 19 Pistols - 1/2x28 TPI
    $185.99 $205.99 $129.99 $139.99 Save $76.00
  18. Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    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
  19. 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
  24. 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
  26. Ballistic Advantage Premium Series Barrel for Glock 17 Gen 5 - 1/2x28
    Ballistic Advantage Premium Barrel for Glock 17 Pistols with 1/2x28 TPI
    $155.99 $175.99 $139.99 $157.99 Save $18.00
  28. Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $724.99 $692.99 Save $32.00
  30. 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
  31. Fortis Manufacturing Match Grade Threaded Barrel for Glock Gen 1-5 19, 19X, 45 - 1/2x28 - BLK
    Fortis Manufacturing Match Grade Threaded Barrel for Glock Gen 1-5 19, 19X, 45 - 1/2x28
    $221.99 $231.99 $210.99 $220.99 Save $11.00
  32. Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    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
  33. Faxon Firearms Duty Series AR-15 5.56 NATO 1:8 4150 CMV Barrel -10.5"-Carbine-SOCOM
    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
  34. Backup Tactical Threaded Barrel for Sig P320 Full Size Pistols - BLK
    Backup Tactical Threaded Barrel for Sig P320 Full Size Pistols
    (1)
    $169.99 $154.99 Save $15.00
  38. CMMG AR-15 9" .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
  39. Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard-12.5"
    Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    $999.99 $920.99 Save $79.00
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