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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!

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  1. 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
  3. 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
  4. 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
  6. 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
  7. 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
  8. 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
  9. 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
  14. 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
  15. 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
  16. 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
  17. 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
    $692.99 $659.99 Save $33.00
  19. Ballistic Advantage Performance AR-15 16" Mid-Length Gas 5.56 NATO 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
    $245.99 $232.99 Save $13.00
  20. 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
  24. FN Button-Rifled AR-15 5.56 NATO 1:7 CMV Barrel - 10.5" - Carbine
    FN Button-Rifled AR-15 5.56 NATO 1:7 CMV Barrel
    $299.99 $238.99 $279.99 Save $61.00
  26. 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
  27. Ballistic Advantage Modern AR-15 18" Rifle-Length Gas 5.56 NATO 1:7 CMV Barrel
    Ballistic Advantage Modern Series AR-15 5.56 1:7 CMV Barrel
    $125.99 $195.99 $118.99 $185.99 Save $12.00
  28. Ballistic Advantage Performance AR-15 16" Mid-Length Gas 5.56 NATO 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
    $205.99 $235.99 $194.99 $223.99 Save $12.00
  29. Faxon Firearms Duty Series AR-15 16" Mid-Length Gas 5.56 NATO 1:8 4150 Steel Threaded Gunner Profile Barrel
    Faxon Firearms Duty Series AR-15 5.56 NATO 1:8 4150 CMV Barrel
    $169.99 $191.99 $156.99 $176.99 Save $15.00
  30. Faxon Firearms Duty Series AR-15 Carbine-Length 5.56 NATO 1:7 Chrome Lined 4150 CMV Barrel -12.5"-Carbine-Medium
    Faxon Firearms Duty Series AR-15 Carbine-Length 5.56 NATO 1:7 Chrome Lined 4150 CMV Barrel
    $238.99 $242.99 $219.99 $223.99 Save $19.00
  31. Faxon Firearms Match Series AR-15 .223 Wylde 1:8 SS Barrel -16"-Pencil-Mid
    Faxon Firearms Match Series AR-15 .223 Wylde 1:8 SS Barrel
    $241.99 $302.99 $222.99 $278.99 Save $24.00
  32. Diamondback AR-15 16" Carbine-Length Gas 5.56 NATO 1:9 CMV Barrel
    Diamondback AR-15 5.56 NATO CMV Barrel
    $103.99 $92.99 Save $11.00
  33. Ballistic Advantage Classic AR-15 16" Mid-Length 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
    $330.99 $313.99 Save $17.00
  34. Seekins Precision Match Grade AR-15 16" Mid-Length 0.750" Gas .223 Wylde 1:8 Stainless Steel 5R Rifled 1/2x28 Barrel
    Seekins Precision Match Grade AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    Out of stock
    $395.99 $379.99 Save $16.00
  35. Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard 16"
    Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    Out of stock
    $999.99 $920.99 Save $79.00
  37. 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
  38. Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard - BLK
    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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