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 - B&T APC 9mm, APC .45 Jet Funnel - Black - HKP-18034 B&T APC9, APC45 Jet Funnel
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    B&T APC9, APC45 Jet Funnel

    B&T Brugger & Thomet

    $75.00
    Brugger and Thomet 9mm, APC .45 Jet Funnel for B&T APC Swiss B&T manufactured Jet funnel for the APC 9mm and .45 Cal models.
    HKP-18034
    $75.00
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    $75.00
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  • New - H&K HK MR762/417 Castle Receiver Extension Nut For Buffer Tube - Black - HKP-16768 HK417, MR762 Buffer Tube Castle Nut
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    HK417, MR762 Buffer Tube Castle Nut

    H&K Heckler & Koch

    $44.95
    Heckler and Koch Castle Nut for Receiver Extension for Buffer Tube for HK417 and MR762 New HK German manufacture and the factory correct offering with the proper installation screws and staking guides. Compatible With: HK417, MR762
    HKP-16768
    $44.95
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    $44.95
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  • New - Surefire (5.56/.223) Muzzle Brake/Suppressor Adapter - Threaded 1/2x28 - HKP-17378 HK416, MR556 Adapter - Muzzle Brake or Suppressor - 1/2x28
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    HK416, MR556 Adapter - Muzzle Brake or Suppressor - 1/2x28

    Surefire

    $165.00
    Surefire (5.56/.223) Muzzle Brake/Suppressor Adapter - Threaded 1/2x28 The SureFire muzzle brake is designed for M4, M16, HK 416, and MR556 weapons with 1/2-28 muzzle threads. It significantly reduces recoil impulse and muzzle rise, enhancing...
    HKP-17378
    $165.00
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    $165.00
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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
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    $1,779.95
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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
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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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