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  1. Caliber
    300 AAC Blackout
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  1. Aero Precision 4 items
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  2. W/O BCG & CH 2 items
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  17. 16.5" 1 item
Material
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Thread Pitch
  1. 5/8x24 13 items
Inventory
  1. In Stock 27 items
  2. Out of Stock 13 items
Customer Rating
  1. 5
    5 items
  2. 3
    & 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!

  1. DMA Inc. XTS .300 AAC / .308 5.75" Fake Silencer - 5/8x24
    DMA Inc. XTS .300 AAC / .308 5.75" Fake Silencer - 5/8x24
    $33.99 $27.99 Save $6.00
  2. DMA Inc. XTS Flash Cone .300 AAC / .308 Small Muzzle Brake - 5/8x24
    DMA Inc. XTS Flash Cone .300 AAC / .308 Small Muzzle Brake - 5/8x24
    $27.99 $29.99 $19.99 $21.99 Save $8.00
  3. DMA Inc. Competition .30 Muzzle Brake - 5/8x24
    DMA Inc. Competition .30 Muzzle Brake - 5/8x24
    (1)
    $31.99 $22.99 Save $9.00
  4. SilencerCo ASR Blast Shield
    SilencerCo ASR Blast Shield
    $149.99 $126.99 Save $23.00
  5. DMA Inc. A2 .30 Flash Hider - 5/8x24
    DMA Inc. A2 .30 Flash Hider - 5/8x24
    $12.99 $19.99 $8.99 $12.99 Save $7.00
  6. TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit
    (1)
    $359.99 $499.99 $309.99 $329.99 Save $170.00
  9. 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
  10. Ballistic Advantage Premium Series AR-15 Pistol-Length Gas .300 BLK 1:7 SS Barrel w/ Lo Pro Gas Block
    Ballistic Advantage Premium Series AR-15 Pistol-Length Gas .300 BLK 1:7 SS Barrel w/ Lo Pro Gas Block
    $220.99 $230.99 $124.99 Save $106.00
  12. DMA Inc. XTS AR-15 Pistol-Length Gas .300 Blackout 1:8 4150 CMV Barrel
    DMA Inc. XTS AR-15 Pistol-Length Gas .300 Blackout 1:8 4150 CMV Barrel
    $120.99 $144.99 $89.99 Save $55.00
  16. 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
  17. 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
  18. Faxon Firearms Match Series AR-15 Pistol-Length Gas .300 Blackout SS Barrel
    Faxon Firearms Match Series AR-15 Pistol-Length Gas .300 Blackout SS Barrel
    $188.99 $197.99 $173.99 $182.99 Save $15.00
  19. DMA Inc. XTS Flash Cone .300 AAC / .308 Large Muzzle Brake - 5/8x24
    DMA Inc. XTS Flash Cone .300 AAC / .308 Large Muzzle Brake - 5/8x24
    (1)
    $29.99 $21.99 $23.99 Save $8.00
  20. DMA Inc. XTS Flash Cone .300 AAC / .308 Medium Muzzle Brake - 5/8x24
    DMA Inc. XTS Flash Cone .300 AAC / .308 Medium Muzzle Brake - 5/8x24
    $29.99 $21.99 Save $8.00
  22. 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
  23. TacFire AR-15 .300 Blackout Upper Receiver
    TacFire AR-15 .300 Blackout Upper Receiver
    (2)
    $309.99 $399.99 $254.99 $299.99 Save $145.00
  24. Primary Weapons Systems UXR Elite .300 Blackout Conversion Kit
    Primary Weapons Systems UXR Elite .300 Blackout Conversion Kit
    $575.99 $499.99 Save $76.00
  25. CMMG AR-15 .300 Blackout 1:7 CM Barrel
    CMMG AR-15 .300 Blackout 1:7 CM Barrel
    $199.99 $224.99 $164.99 $179.99 Save $45.00
  26. Aero Precision VG6 Gamma 300BLK Muzzle Brake - 5/8x24
    Aero Precision VG6 Gamma 300BLK Muzzle Brake - 5/8x24
    Coupon Available
    $90.99 $54.99 Save $36.00
  27. 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
  28. CMMG DISSENT Mk4 AR-15 6.5" .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard
    CMMG DISSENT Mk4 AR-15 6.5" .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard
    Out of stock
    $1,349.99 $1,024.99 Save $325.00
  33. Odin Works AR-15 .300 Blackout 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Odin Works AR-15 .300 Blackout 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $245.99 $325.99 $232.99 $308.99 Save $17.00
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