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 - H&K HK MR556A1/A4 Complete Bolt Group - HKP-02618 HK MR556 A1, A4 Bolt Group - Complete
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    HK MR556 A1, A4 Bolt Group - Complete

    H&K Heckler & Koch

    $529.95
    H&K HK MR556A1 and A4 Complete Bolt Group Complete semi-auto bolt carrier group for MR556A1/A4 receivers. Bolt carriers will be marked ".223 Rem" or "5.56 x 45".  Includes The Following: MR556 Bolt Carrier Complete bolt head Firing pin...
    HKP-02618
    $529.95
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  • New - H&K G36K Gas Piston Rod/Spring Assembly - HKP-00284
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    HK G36K Rod and Spring - Gas Piston - Assembly

    H&K Heckler & Koch

    $89.95
    New HK German G36K Gas Piston Rod/Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion.  
    HKP-00284
    $89.95
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  • New - XS HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Night Sight - Front - HKP-00808 HK UMP, USC, G36, SL8 Front Night Sight
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    HK UMP, USC, G36, SL8 Front Night Sight

    XS Sights

    $84.95
    XS Sight Systems Trijicon - Front Night Sight Standard dot, the perfect size and fitment. This is a direct replacement for the factory sight. The night sight installs within a couple of minutes. The custom sight will enable you to get on target quicker...
    HKP-00808
    $84.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever - HKP-01884 HK UMP, USC Cocking Lever
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    HK UMP, USC Cocking Lever

    H&K Heckler & Koch

    $24.95
    HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USC
    HKP-01884
    $24.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Handle Pin - HKP-01885
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    HK UMP, USC Cocking Handle Pin

    H&K Heckler & Koch

    $7.95
    HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USC
    HKP-01885
    $7.95
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    $7.95
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  • New - HKP G3/33/91/93 Bipod Replacement Feet Set - Steel - HKP-21310 HK91, G3, HK33, HK93 Bipod Replacement Feet Set
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    HK91, G3, HK33, HK93 Bipod Replacement Feet Set

    HKP HK Parts

    $18.95
    HKP G3/33/91/93 Bipod Replacement Feet - Set of Two (2) Replacement feet set for original H&K bipods.  Our replacement feet are suitable to replace both steel and plastic feet in factory HK bipods. Each kit includes a left and right bipod foot...
    HKP-21310
    $18.95
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    $18.95
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  • New - Blitzkrieg HK MP5 Spike Front Sight Gen 2 - Orange - HKP-21100 HK MP5 Spike Front Sight - Gen 2 - Orange
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    HK MP5 Spike Front Sight - Gen 2 - Orange

    Blitzkrieg Components

    $84.95
    Blitzkrieg HK MP5 Spike Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 PTR-style front sight provides an advanced sighting system with improved visibility and precision. The spike-tipped post and bright orange stripe ensure a fast and clear sight...
    HKP-21100
    $84.95
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  • New - HKP MP5 9mm Barrel Extension - HKP-18000
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    HK MP5 Barrel Extension - 9mm

    HKP HK Parts

    $49.95
    HKP MP5 9mm Barrel Extension The MP5 3-lug barrel extension functions as a fake suppressor to give the standard 8.85" barrel an overall length of 16" for rifle builds.  The extension slips over the tri-lug adapter and is pinned into place by a...
    HKP-18000
    $49.95
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  • Used - H&K MP5/SP5 Rear Sight Sets Complete All 7 Pieces - HKP-02531
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    HK MP5/SP5 Rear Sight Sets Complete All 7 Pieces

    H&K Heckler & Koch

    $129.95
    MP5, SP5, MP5K, & SP5K Rear Sight Set Complete - German HK Each rear sight set includes the entire rear sight assembly & all the mounting hardware for the complete MP5 rear sight assembly.  Each Set Includes The Following German HK...
    HKP-02531
    $129.95
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  • New - SB Tactical - HK MP5 Brace with HKP Adapter - Skeletonized - HKP-21055 HK MP5 Brace and HKP Adapter - Skeletonized
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    HK MP5 Brace and HKP Adapter - Skeletonized

    HKP HK Parts / SB Tactical

    $299.95
    SB Tactical Side Folding Brace For The HK MP5, SP5 model Each brace comes assembled ready to install no assembly required. This complete brace will come assembled with our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling...
    HKP-21055
    $299.95
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  • New - RCM HK MP5 Semi Auto Carrier - HKP-20981 HK MP5 Bolt Carrier - Semi Auto
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    HK MP5 Bolt Carrier - Semi Auto

    RCM

    $146.95
    RCM HK MP5 Semi Auto Carrier New RCM manufactured MP5, 94 F/A carrier with all current "F" style upgrades and tungsten filled for the best performance and the utmost reliability. Machined completely from billet ordnance grade steel to exact HK German...
    HKP-20981
    $146.95
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  • New - Timney Triggers HK91/G3 .308 2-Stage Trigger - HKP-20508 HK91, G3 2-Stage Trigger
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    HK91, G3 2-Stage Trigger

    Timney Triggers

    $348.95
    Timney Trigger for - HK91, PTR 91 The Timney HK91 trigger is factory-set with a two pound first stage and a two pound second stage pull weight.  This offering comes complete with a factory German .308 ejector lever, ejector spring and ejector axle,...
    HKP-20508
    $348.95
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