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 MR556/416 Forward Assist Plunger Pin - HKP-17542
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    HK416, MR556 Forward Assist Plunger Pin

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/416 Forward Assist Plunger Pin  
    HKP-17542
    $9.95
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    $9.95
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  • Out Of Stock
    New - H&K HK MR556 M-LOK 16.5" Upper Receiver Assembly - Black - HKP-17366 HK MR556 Upper Receiver Kit -16.5" - M-LOK

    HK MR556 Upper Receiver Kit -16.5" - M-LOK

    H&K Heckler & Koch

    $1,779.95
    New HK Factory German MR556 Upper Kit with M-LOK forearm Includes: Complete MR556 upper receiver with M-LOK forearm MR556 Bolt group Complete Tungsten Filled HK Buffer HK Buffer Spring One 30 Round HK Steel Maritime Magazine No FFL required as the...
    HKP-17366
    $1,779.95
    Out Of Stock
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    $1,779.95
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  • New - H&K HK UMP/USC Rear Sight Support Roll Pin - HKP-02155
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    HK UMP, USC Sight Support Roll Pin - Rear

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Rear Sight Support Roll Pin This is the axle pin that holds the rear sight assembly to the rear sight housing of the receiver on the USC or UMP firearm.
    HKP-02155
    $9.95
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  • Out Of Stock
    New - H&K G36/UMP (.40 S&W/.45 ACP/9mm/5.56/.223) F/A Hammer - HKP-02308

    HK G36, UMP Hammer - Full Auto

    H&K Heckler & Koch

    $49.95
    G36 & HK UMP Hammer For Lower Or Trigger Group 
    HKP-02308
    $49.95
    Out Of Stock
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    $49.95
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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) Locking Piece- 45 Degree - HKP-18518 HK91, G3 Locking Piece - 45 Degree

    HK91, G3 Locking Piece - 45 Degree

    PTR

    $21.95
    45 Degree Locking Piece - US Made PTR standard 45 degree locking piece made in the USA by PTR and is design to be a direct replacement for all .308 HK style firearms. Compatible With: G3 PTR 91 HK 91 Other costume clones
    HKP-18518
    $21.95
    Out Of Stock
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    $21.95
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  • New - SureFire WARCOMP PTR (7.62x51/.308) Flash Hider - Threaded 5/8x24 - HKP-18024
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    HK G3, HK417 Flash Hider - WARCOMP - Threaded 5/8x24

    Surefire

    $159.95
    SureFire WARCOMP (7.62x51/.308) Flash Hider - Threaded 5/8x24 This flash hider is perfect for the post 2016 production PTR models as well as C308 models. Compatible With: HK G3/91/PTR HK 417/MR762 HK PSG1 B&T APR AR10 LR308 C308 7.62x51/.308...
    HKP-18024
    $159.95
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    $159.95
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  • New - H&K HK 93/53/33 (5.56/.223) Cleaning Kit - HKP-01550 HK33, HK53, HK93 Cleaning Kit - 5.56 / .223
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    HK33, HK53, HK93 Cleaning Kit - 5.56 / .223

    HKP HK Parts / Heckler & Koch

    $89.95
    H&K HK 93/53/33 (5.56/.223) Cleaning Kit New Factory HK German 93, 33, 53, or other HK .223/5.56's cleaning kit for all HK's or clones. This is the factory HK cleaning kit issued by HK as an OEM product. Includes: Cleaning rod for short and long...
    HKP-01550
    $89.95
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    $89.95
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  • New - MP5SD 9mm Cocking Tube End Cap Weldment - HKP-15702 HK MP5SD Cocking Tube End Cap Weldment - 9mm
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    HK MP5SD Cocking Tube End Cap Weldment - 9mm

    USA

    $34.95
    MP5SD Cocking Tube End Cap Weldment For MP5 Front Sight Towers Milled from solid billet. US made MP5SD cocking tube end cap weldment for use with all MP5 front sight towers. Available exclusively at HK Parts.
    HKP-15702
    $34.95
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    $34.95
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  • RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277 RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277
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    HK SP5K Bolt Group - Suppressed - Full Auto - Spec

    RCM

    $409.95
    RCM HK SP5K Spec Suppressed Bolt Group- Full Auto The RCM SP5K Suppressed bolt group is expertly engineered for operating in full auto while suppressed. Although designed as a full-auto bolt group, it also functions perfectly in semi-auto receivers. This...
    HKP-22323
    $409.95
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    $409.95
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  • New - H&K HK21 50 Round Belt with Starter Tab - HKP-22098 HK21 Ammunition Belt with Starter Tab - DM6 - 50 Round
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    HK21 Ammunition Belt with Starter Tab - DM6 - 50 Round

    H&K Heckler & Koch

    $39.95
    H&K HK21 DM6 50 Round Belt with Starter Tab - 7.62x51/.308 Custom 50 round belt for HK21 and MG3 belt-fed rifles. Compatible With: HK21
    HKP-22098
    $39.95
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  • Out Of Stock
    New - H&K Screwdriver for Adjustable Rear Sight - HKP-21981 HK Screwdriver for Adjustable Rear Sight

    HK Screwdriver for Adjustable Rear Sight

    H&K Heckler & Koch

    $9.95
    Screwdriver for Adjustable Rear Sight Precision screwdriver designed for adjusting rear sights. Ideal for fine-tuning windage and elevation.    
    HKP-21981
    $9.95
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    $9.95
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