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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!

  1. Ambient Arms ATOM-ZT Flash Hider w/ Universal HUB Adapter
    Ambient Arms ATOM-ZT Flash Hider w/ Universal HUB Adapter
    $219.99
  2. Battle Arms Development THUMPER Muzzle Brake
    Battle Arms Development THUMPER Muzzle Brake
    $68.99 $75.99 $61.99 $67.99 Save $8.00
  3. Yankee Hill Machine Co sRx Flash Hider
    Yankee Hill Machine Co sRx Flash Hider
    $99.99 $84.99 Save $15.00
  4. 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
  5. Odin Works AR-15 .223 Wylde 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Odin Works AR-15 .223 Wylde 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    $330.99 $313.99 Save $17.00
  6. San Tan Tactical Everything But The Lower AR-15 Build Kit
    San Tan Tactical Everything But The Lower AR-15 Build Kit
    $1,089.99 $980.99 Save $109.00
  7. Fortis Manufacturing Muzzle Brake
    Fortis Manufacturing Muzzle Brake
    $99.99 $94.99 Save $5.00
  8. Ultradyne USA Mercury Compensator
    Ultradyne USA Mercury Compensator
    $119.99
  9. Midwest Industries AR Flash Hider / Impact Device
    Midwest Industries AR Flash Hider / Impact Device
    $38.99 $34.99 Save $4.00
  10. Griffin Armament Taper Mount FlashComp Compensator
    Griffin Armament Taper Mount FlashComp Compensator
    $109.99 $114.99 $104.99 $109.99 Save $5.00
  11. Yankee Hill Machine Co sRx Muzzle Brake
    Yankee Hill Machine Co sRx Muzzle Brake
    $99.99 $84.99 Save $15.00
  12. Yankee Hill Machine Co Phantom Smooth Compensator / Flash Hider
    Yankee Hill Machine Co Phantom Smooth Compensator / Flash Hider
    $36.99 $64.99 $36.99 $54.99 Save $10.00
  13. 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
  14. 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 $194.99 $209.99 Save $11.00
  15. 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
    $692.99 $659.99 Save $33.00
  16. PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    $629.99 $749.99 $464.99 $649.99 Save $220.00
  17. Ballistic Advantage Performance Series AR-15 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
    $245.99 $232.99 Save $13.00
  18. FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    $6,399.99 $5,899.99 Save $500.00
  19. Rosco Husky AR-15 5.56 NATO 1:7 CMV CL Barrel
    Rosco Husky AR-15 5.56 NATO 1:7 CMV CL Barrel
    $182.99 $206.99 $163.99 $185.99 Save $21.00
  20. 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
  21. Lantac ADC Direct Thread Suppressor Hub Adapter
    Lantac ADC Direct Thread Suppressor Hub Adapter
    $79.99 $95.99 $71.99 $85.99 Save $10.00
  22. Spike's Tactical Barking Spider 2 Muzzle Brake
    Spike's Tactical Barking Spider 2 Muzzle Brake
    $134.99 $121.99 Save $13.00
  23. Gemtech QUICKMOUNT Muzzle Brake
    Gemtech QUICKMOUNT Muzzle Brake
    $99.99 $94.99 Save $5.00
  24. HIPERFIRE HIPERCOMP Gen2 Compensator
    HIPERFIRE HIPERCOMP Gen2 Compensator
    $69.99 $79.99 $65.99 $75.99 Save $4.00
  25. ATI Outdoors Shark Muzzle Brake w/ Crush Washer
    ATI Outdoors Shark Muzzle Brake w/ Crush Washer
    $35.99 $36.99
  26. Spike's Tactical Dynacomp Muzzle Brake
    Spike's Tactical Dynacomp Muzzle Brake
    $89.99 $99.99 $80.99 $89.99 Save $10.00
  27. Spike's Tactical R2 Muzzle Brake
    Spike's Tactical R2 Muzzle Brake
    $58.99 $68.99 $52.99 $61.99 Save $7.00