My Cart ()
Back Close
Filters
Now Shopping by
  1. Color
    Black
  2. Platform
    AR-15
  3. Caliber
    300 AAC Blackout
Brand
  1. Ballistic Advantage 3 items
  2. CMMG 1 item
  3. Faxon Firearms 2 items
  4. LBE Unlimited 1 item
  5. Odin Works 2 items
  6. Rosco Manufacturing 1 item
  7. TacFire Inc. 4 items
Color
  1. Armor Black 2 items
  2. Bead Blasted 2 items
  3. Black 14 items
  4. Black Nitride 1 item
  5. Hard Coat Anodized 2 items
  6. Midnight Bronze 1 item
  7. Silver 2 items
Platform
  1. AR-15 14 items
  2. Primary Weapons Systems 1 item
Caliber
  1. 10mm Auto 1 item
  2. 22 ARC 5 items
  3. 22 Long Rifle 9 items
  4. 223 Remington 52 items
  5. 223 Wylde 9 items
  6. 300 AAC Blackout 14 items
  7. 338 ARC 1 item
  8. 350 Legend 4 items
  9. 45 Auto (ACP) 4 items
  10. 458 Socom 1 item
  11. 5.56mm NATO 68 items
  12. 5.7 x 28mm 2 items
  13. 6mm ARC 7 items
  14. 6.5 Grendel 5 items
  15. 7.62 x 39mm 2 items
  16. 9mm Luger 12 items
Attachment Type
  1. MLOK 2 items
Handguard Length
  1. 4" 1 item
  2. 10" 1 item
Handguard Style
  1. Free Float 1 item
Upper Type
  1. Pistol 1 item
Options
  1. W/ BCG & CH 2 items
Barrel Length
  1. 5" 3 items
  2. 6" 2 items
  3. 7.5" 3 items
  4. 8" 4 items
  5. 8.3" 1 item
  6. 8.5" 1 item
  7. 9" 2 items
  8. 10" 2 items
  9. 10.3" 1 item
  10. 10.5" 6 items
  11. 12.5" 1 item
  12. 14.5" 1 item
  13. 16" 6 items
  14. 16.1" 3 items
Material
  1. 416R Stainless Steel 3 items
  2. 4150 Chrome Moly Vanadium 4 items
  3. Chrome Moly Venadium Steel 4 items
  4. Stainless Steel 1 item
  5. Steel 1 item
Inventory
  1. In Stock 8 items
  2. Out of Stock 6 items
Customer Rating
  1. 5
    1 item
  2. 3
    & up     2 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. TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit - 10.5"
    TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit
    (1)
    $359.99 $499.99 $309.99 $329.99 Save $170.00
  2. Ballistic Advantage Modern AR-15 6" Pistol-Length Gas .300 Blackout 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
  4. TacFire AR-15 Pistol-Length Gas .300 Blackout 1:8 Nitride Barrel - 16"
    TacFire AR-15 Pistol-Length Gas .300 Blackout 1:8 Nitride Barrel
    $101.99 $109.99 $79.99 $104.99 Save $25.00
  5. Faxon Firearms Match Series AR-15 Pistol-Length Gas .300 Blackout SS Barrel-9"-1:8
    Faxon Firearms Match Series AR-15 Pistol-Length Gas .300 Blackout SS Barrel
    $188.99 $197.99 $173.99 $182.99 Save $15.00
  6. Faxon Firearms Duty Series AR-15 .300 Blackout 1:8 4150 CMV Barrel-10.5"-Pistol
    Faxon Firearms Duty Series AR-15 .300 Blackout 1:8 4150 CMV Barrel
    $160.99 $173.99 $148.99 $160.99 Save $13.00
  7. TacFire AR-15 .300 Blackout Upper Receiver - 10"
    TacFire AR-15 .300 Blackout Upper Receiver
    (2)
    $309.99 $399.99 $254.99 $299.99 Save $145.00
  8. CMMG AR-15 8" Pistol-Length Gas .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
  9. Odin Works AR-15 10.5 Pistol-Length Gas .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
Filter