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  1. Thread Pattern
    16x1 LH
  2. Caliber
    45 Auto (ACP)
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  3. 16x1 LH 4 items
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  1. 45 Auto (ACP) 4 items
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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!

  2. HK Threaded Barrel for USP45 Compact Tactical - 16x1 LH
    HK Threaded Barrel for USP45 Compact Tactical - 16x1 LH
    Out of stock
    $303.99 $254.99 Save $49.00
  3. HK Threaded Barrel for HK45 Compact
    HK Threaded Barrel for HK45 Compact
    Out of stock
    $205.99 $179.99 Save $26.00
  4. HK Threaded Barrel for HK45 / HK45 Tactical
    HK Threaded Barrel for HK45 / HK45 Tactical
    Out of stock
    $300.99 $264.99 Save $36.00
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