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  1. Color
    Black
  2. Platform
    Heckler & Koch
Brand
  1. Aim Sports Inc 3 items
  2. Heckler & Koch Magazines 31 items
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  5. Magpul 3 items
  6. Midwest Industries 5 items
  7. PTR Industries 2 items
Color
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Thread Pattern
  1. 13.5x1LH 3 items
  2. 14.5x1 LH 2 items
  3. 16x1 LH 4 items
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  61. Shotgun 101 items
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  73. Weatherby 7 items
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  75. ZEV Technologies 2 items
Caliber
  1. 40 S&W 2 items
  2. 45 Auto (ACP) 4 items
  3. 9mm Luger 3 items
Reticle Dot Size
  1. 2 MOA Dot / 32 MOA Circle 1 item
Reticle
  1. Circle 1 item
  2. Circle Dot 1 item
  3. Dot 1 item
Attachment Type
  1. KeyMod 1 item
  2. MLOK 5 items
Handguard Length
  1. 2.56" 1 item
  2. 5.65" 1 item
  3. 7.3" 1 item
  4. 9.31" 1 item
  5. 9.6" 1 item
  6. 10.3" 1 item
  7. 11.66" 1 item
  8. 12" 1 item
  9. 14.1" 1 item
  10. 16" 1 item
Handguard Style
  1. Free Float 2 items
Sight Style
  1. Tritium Night Sight 5 items
Barrel Length
  1. 4.45" 2 items
  2. 4.46" 1 item
  3. 4.57" 1 item
  4. 4.7" 1 item
  5. 4.9" 1 item
  6. 5" 1 item
  7. 5.09" 1 item
  8. 5.2" 1 item
Material
  1. Aluminum 11 items
  2. Polymer 6 items
  3. Steel 5 items
  4. Steel / Polymer 1 item
Footprint
  1. H&K VP9 1 item
Inventory
  1. In Stock 25 items
  2. Out of Stock 21 items
Customer Rating
  1. 5
    7 items
  2. 4
    & up     8 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. Magpul SL Stock - HK94/MP5
    Magpul SL Stock - HK94/MP5
    $159.99 $129.99 Save $30.00
  6. Midwest Industries HK MP5 M-LOK Handguard
    Midwest Industries HK MP5 M-LOK Handguard
    Coupon Available
    (3)
    $146.99 $136.99 Save $10.00
  9. HK SP5K / MP5K Folding Stock
    HK SP5K / MP5K Folding Stock
    $438.99 $329.99 Save $109.00
  14. Midwest Industries HK SP89 / MP5K M-LOK Handguard
    Midwest Industries HK SP89 / MP5K M-LOK Handguard
    Coupon Available
    (3)
    $131.99 $120.99 Save $11.00
  16. Midwest Industries M-LOK HK91 And Clones Handguard
    Midwest Industries M-LOK HK91 And Clones Handguard
    Coupon Available
    $209.99 $199.99 Save $10.00
  19. Aim Sports HK91 Handguard
    Aim Sports HK91 Handguard
    $79.99 $99.99 $59.99 $69.99 Save $30.00
  20. Aim Sports HK91 / G3 M-LOK Extended Handguard
    Aim Sports HK91 / G3 M-LOK Extended Handguard
    $119.99 $129.99 $89.99 $99.99 Save $30.00
  26. HK SP5, MP5 HK94 3-Position Retractable Stock
    HK SP5, MP5 HK94 3-Position Retractable Stock
    Out of stock
    $820.99 $634.99 Save $186.00
  27. Midwest Industries MP5 SD M-LOK Handguard
    Midwest Industries MP5 SD M-LOK Handguard
    Out of stock
    $179.99 $199.99 $169.99 $189.99 Save $10.00
  28. HK AR-10, MR762, HK417 Carbine Stock
    HK AR-10, MR762, HK417 Carbine Stock
    Out of stock
    (1)
    $89.99 $69.99 Save $20.00
  29. PTR HG M-LOK Handguard
    PTR HG M-LOK Handguard
    Out of stock
    $99.99 $179.99 $89.99 $160.99 Save $19.00
  37. HK Drop-In Threaded Barrel for VP40 Pistols - 14.5x1 LH
    HK Drop-In Threaded Barrel for VP40 Pistols - 14.5x1 LH
    Out of stock
    $303.99 $238.99 Save $65.00
  38. HK Drop-In Threaded Barrel for P30L Pistols - 13.5x1 LH
    HK Drop-In Threaded Barrel for P30L Pistols - 13.5x1 LH
    Out of stock
    $303.99 $246.99 Save $57.00
  40. HK Threaded Barrel for USP45 Compact Tactical - 16x1 LH
    HK Threaded Barrel for USP45 Compact Tactical - 16x1 LH
    Out of stock
    $303.99 $252.99 Save $51.00
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