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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  • New - HKP .45 ACP - 4 Prong Flash Hider - Threaded 16x1 LH - HKP-01018 HK45, HK UMP Flash Hider -  4 Prong - Threaded 16x1 RH
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    HK45, HK UMP Flash Hider - 4 Prong - Threaded 16x1 RH

    HKP HK Parts

    $79.95
    HK Parts .45 ACP 4 Prong Flash Hider - Threaded 16x1 RH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...
    HKP-01018
    $79.95
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  • New - H&K G36/SL8 (5.56/.223) Bolt Group Fork - HKP-01859
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    HK G36, SL8 Bolt Group Fork

    H&K Heckler & Koch

    $12.95
    HK G36 & SL8 Bolt Group Fork For Cocking Handle  
    HKP-01859
    $12.95
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    $12.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Lower Backplate - HKP-16473 HK UMP Lower Backplate
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    HK UMP Lower Backplate

    H&K Heckler & Koch

    $34.95
    HK Heckler and Koch .40 S&W, .45 ACP, 9mm Lower Backplate for HK UMP HK German Backplate for all UMP lowers. You will need to add your existing buffer or order one to make a complete buffer assembly.
    HKP-16473
    $34.95
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    $34.95
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  • New - HKP HK MP5 (.40 S&W) Locking Roller -2 - HKP-17563
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    HK MP5 Locking Roller -2 - .40 S&W

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -2 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17563
    $11.95
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  • New - H&K MP5K/SP89/SP5K 9mm Cocking Tube Support Complete - HKP-00399
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    HK MP5K, SP89, SP5K Cocking Tube Support - 9mm - Complete

    H&K Heckler & Koch

    $123.99
    HK German MP5K, SP89, & SP5K Cocking Tube Support Complete - New Each support is complete with a detent and spring installed. These can also be used to replace the plastic or cheaply made steel or aluminum clone parts found in many clones and builds...
    HKP-00399
    $123.99
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  • New - HKP Front Sight Tower Ambi Sling Attachment Weldment - HKP-17881 HKP Front Sight Tower Ambi Sling Attachment Weldment
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    HKP Front Sight Tower Ambi Sling Attachment Weldment

    HKP HK Parts

    $14.95
    HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...
    HKP-17881
    $14.95
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    $14.95
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  • Used - H&K HK 416/MR556 Enhanced Buffer Tube-Commercial - HKP-15424 H&K HK 416/MR556 Enhanced Buffer Tube-Commercial H&K Heckler & Koch HKP-15424
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    HK416, MR556 Buffer Tube - Enhanced - Commercial

    H&K Heckler & Koch

    $249.95
    HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial: Genuine HK German manufactured 416, MR556 new style latest generation marine environment & over the beach buffer tube. Each Commercial buffer tube has built in drainage...
    HKP-15424
    $249.95
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  • Out Of Stock
    HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter

    HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter

    F5 MFG

    $229.95
    HK MP5/SP5 ACR Folding Stock w/Adapter Upgrade your MP5 platform with the F5-ACR Stock.  Precision machined from 6061 billet aluminum for unmatched durability. Built for law enforcement, personal defense, and enthusiasts, this stock is lightweight,...
    HKP-22253-M
    $229.95
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  • New - MKE HK MP5 Telescopic Buttstock - Cerakoted - HKP-21610-M HK MP5 Telescopic Stock - Cerakoted
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    HK MP5 Telescopic Stock - Cerakoted

    MKE

    $379.95
    MKE Telescopic Stock for HK MP5 and HK AP5 Transform your MP5-AP5 Clone with the essential upgrade that defines its iconic look. The A3 collapsible design delivers a customizable length of pull for unparalleled comfort and control. With a straight...
    HKP-21610-M
    $379.95
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  • On Sale
    New - TPM Ruger Bolt Shroud - Bronze - HKP-20905 Ruger 10/22 Bolt Shroud - Bronze
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    Ruger 10/22 Bolt Shroud - Bronze

    Tactical Precision MFG

    Now: $27.95
    Was: $66.99
    Tactical Precision MFG Ruger 10/22 Bronze Bolt Shroud  This Ruger American rifle bolt shroud is hands down the best RAR bolt shroud on the market. Each bolt shroud is made in house on a five-axis Swiss lathe to exacting tolerances out of grade 5...
    HKP-20905
    Now: $27.95
    Was: $66.99
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  • On Sale
    New - TPM Tikka T3 Bolt Handle Upgrade - HKP-20901 Tikka T3 Bolt Handle - Upgrade
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    Tikka T3 Bolt Handle - Upgrade

    Tactical Precision MFG

    Now: $34.95
    Was: $69.99
    TPM Tikka T3 Bolt Handle Upgrade Designed for exact Tikka specs. Tikka T3 upgraded bolt handle is 17-4 stainless steel for optimal strength and durability. This upgraded bolt handle was designed with a 20-degree angle to help improve bolt manipulation...
    HKP-20901
    Now: $34.95
    Was: $69.99
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    Now: $34.95
    Was: $69.99
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  • On Sale
    New - Top Rail - HK USC / UMP - HKP-20744 HK USC , UMP Top Rail
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    HK USC , UMP Top Rail

    Other

    Now: $99.95
    Was: $149.95
    Top Rail - HK USC / UMP TommyBuilt anodized aluminum high rise top rail.  Includes mounting hardware. Compatible With: HK UMP HK USC TMP UMP clone
    HKP-20744
    Now: $99.95
    Was: $149.95
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    Now: $99.95
    Was: $149.95
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