HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • HK21E Feed Mechanism - Complete - 7.62 / .308
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    HK21E Feed Mechanism - Complete - 7.62 / .308

    H&K Heckler & Koch

    $22,495.95
    HK21E Feed Mechanism Complete - German HK - DM1 Links New genuine HK date-coded and marked 21E complete feed mechanism. These are the last of the genuine feed mechs available and due to the HK officially discontinuing the 21E, no additional factory units...
    HKP-00584
    $22,495.95
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    $22,495.95
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  • Out Of Stock
    New - H&K 21 (7.62x51/.308) Carry Handle Axle Elbow Spring - HKP-00578

    HK21 Carry Handle Axle Elbow Spring

    HKP HK Parts

    $11.95
    HK21 & 21E Carry Handle Axle Elbow Spring This part is needed and is used in conjunction with the actual carry handle, axle, axle spring, and (2) E-clips. This is the elbow spring portion of the needed part for the assembly.
    HKP-00578
    $11.95
    Out Of Stock
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    $11.95
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  • New - HK Carry Handle Axle - HKP-00577
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    HK21 Carry Handle Axle

    HKP HK Parts

    $16.95
    HK Carry Handle Axle
    HKP-00577
    $16.95
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    $16.95
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  • Out Of Stock
    New - H&K 21E/23E (7.62x51/.308) & (5.56/.223) Extended Cocking Handle - HKP-00580

    HK21E, HK23E Cocking Handle - Extended

    H&K Heckler & Koch

    $0.00
    HK21E, HK23E & HK11E, 13E Factory German Extended Cocking Handle This cocking handle is for the HK 21E, HK 23E guns only and will not work in HK91, G3 & PTR rifles.
    HKP-00580
    $0.00
    Out Of Stock
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  • New - RCM MP5 40/10 Complete Bolt Head - HKP-02664 HK MP5 Complete Bolt Head - 10mm / .40 S&W
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    HK MP5 Complete Bolt Head - 10mm / .40 S&W

    RCM

    $211.95
      HK MP5 40/10 Bolt Head Complete - RCM- US Each bolt head incorporates the same enhanced material as all of the new RCM products. Ideal to replace out of spec, worn or broken bolt heads or for that custom build. Each bolt head will work and fit on...
    HKP-02664
    $211.95
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    $211.95
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  • New - H&K MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F - HKP-01421 HK MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F
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    HK MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F

    H&K Heckler & Koch

    $3,099.95
    H&K MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F Each trigger group is brand new and factory fresh, directly from HK, designed specifically for push pin style factory MG's. The 4 position, 2 round burst MP5 trigger group is exceptionally rare and...
    HKP-01421
    $3,099.95
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    $3,099.95
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  • Out Of Stock
    New - H&K MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack - HKP-16971 HK MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack

    HK MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack

    H&K Heckler & Koch

    $0.00
    H&K MP5/K 9mm Ambidextrous Navy Style Trigger Pack Designed for HK MP5 and MP5K 9mm ambidextrous housings and selector levers, this trigger pack features a Navy-style configuration with three positions: Safe, Semi, and Full. It offers the classic...
    HKP-16971
    $0.00
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  • New - B&T MP5, 94 Low Mount, Extra Long Scope Rail - HKP-16881 HK MP5 optic mount installed on receiver with low profile Picatinny rail
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    HK MP5, HK94 Optic Mount - 246mm - Low Profile - Picatinny

    B&T Brugger & Thomet

    $239.95
    B&T MP5, 94 Low Mount, Extra Long Scope Rail Swiss made, military grade, B&T MP5 extra long low-profile scope mount. Requires the removal of the MP5 rear sight. Provides the longest possible Picatinny rail. Specifications: Color: Black Height...
    HKP-16881
    $239.95
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    $239.95
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  • New - Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud - HKP-15737 Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud Ergo HKP-15737
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    Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud

    Ergo

    $19.95
    Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud The ERGO 1.5" Bipod Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Features: Slides onto Picatinny rails and held...
    HKP-15737
    $19.95
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    $19.95
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  • On Sale
    HK Trigger Pack Ejector Lever Axle - USED HK Trigger Pack Ejector Lever Axle - USED
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    HK Trigger Pack Ejector Lever Axle - USED

    H&K Heckler & Koch

    Now: $12.95
    Was: $19.95
    HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...
    HKP-01091-USED
    Now: $12.95
    Was: $19.95
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    Now: $12.95
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  • F5 HK MP5 ACR Stock - Picatinny Mount F5 MFG HKP-22350-M HK MP5, SP5 ACR Folding Stock with Stock or Brace Adapter - Picatinny
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    HK MP5, SP5 ACR Folding Stock with Stock or Brace Adapter - Picatinny

    F5 MFG

    $314.95
    F5 HK MP5/SP5 ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their MP5 and other platforms.  This drop-in ready assembly attaches with the MP5's...
    HKP-22350-M
    $314.95
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    $314.95
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  • On Sale
    Franklin Armory BFSIII AK-C1 Standard Caliber - BLEMISHED FA Franklin Armory HKP-19833-B Franklin Armory BFSIII AK-C1 Standard Caliber - BLEMISHED FA Franklin Armory HKP-19833-B
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    AK Binary Trigger - Curved - BFSIII - BLEMISHED

    FA Franklin Armory

    Now: $385.99
    Was: $534.95
    Franklin Armory BFSIII AK-C1 Standard Caliber - 7.62x39 - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The...
    HKP-19833-B
    Now: $385.99
    Was: $534.95
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    Now: $385.99
    Was: $534.95
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