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 Battle Grip Storage Cap Pin - HKP-16861 HK416, MR556 Storage Cap Pin for Pistol Grips
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    HK416, MR556 Storage Cap Pin for Pistol Grips

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/416 Battle Grip Storage Cap Pin  
    HKP-16861
    $4.95
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    $4.95
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  • New - H&K 21E/23E/11E/13E Hammer Spring - HKP-15453
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    HK21E, HK23E, HK11E, HK13E Hammer Spring

    H&K Heckler & Koch

    $19.95
    HK German HK21E, 23E, 11E & 13E Hammer Spring - German This is the heaviest HK hammer spring available for the roller lock family of firearms. The factory correct hammer spring for the beltfed series of firearms. Made in Germany and production has...
    HKP-15453
    $19.95
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  • Used - H&K 91/G3 (7.62x51/.308) SEF Navy Style Trigger Group HK G3 - Used Excellent - HKP-18670 HK91, G3 SEF Navy Style Trigger Group HK G3 - Used Excellent
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    HK91, G3 SEF Navy Style Trigger Group HK G3 - Used Excellent

    H&K Heckler & Koch

    $389.95
    H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Excellent HK factory German HK G3 & HK 91 Full Auto Trigger Group Complete. Pulled from German military HK G3 rifles. These work great as spares or for collectible items. Used in...
    HKP-18670
    $389.95
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    $389.95
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  • New - HKP MP5K/SP89/SP5K 9mm AR Brace/Stock Adapter - QD Sling Attachment - HKP-18796 HK MP5K, SP89, SP5K Stock or Brace Adapter - AR - QD Sling Attachment - 9mm
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    HK MP5K, SP89, SP5K Stock or Brace Adapter - AR - QD Sling Attachment - 9mm

    HKP HK Parts

    $114.95
    HKP MP5K/SP89/SP5K 9mm AR Brace/Stock Adapter - QD Sling Attachment Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD Sling Attachment Points. Properly buffered with factory correct "H" buffers to...
    HKP-18796
    $114.95
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    $114.95
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  • New - HKP MP5 AR Brace/Stock Adapter - HKP-17118 HK MP5 Stock or Brace Adapter - AR
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    HK MP5 Stock or Brace Adapter - AR

    HKP HK Parts

    $114.95
    HKP MP5 AR Brace/Stock Adapter   Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect your expensive firearm. This is the finest AR stock...
    HKP-17118
    $114.95
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    $114.95
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  • HK91, G3, PTR Magazine - 20 Round - Alloy - Like New HK91, G3, PTR Magazine - 20 Round - Alloy - Like New
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    HK91, G3, PTR Magazine - 20 Round - Alloy - Like New

    Rheinmetall

    $19.95
    Rheinmetall HK G3, HK91, and PTR91 20 Round Magazine - Like New G3 alloy mags were made for the German Army and are no longer in production. Once they are gone, they are gone for good. Compatible With: HK G3 HK91 PTR91 In-spec. clones and custom builds
    HKP-22495
    $19.95
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    $19.95
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  • New - H&K HK MP5/MP5K 30 Round - LEO Marked Magazine - TiN Coated - HKP-21792 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - LEO Marked
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - LEO Marked

    H&K Heckler & Koch

    $159.95
    H&K HK MP5/MP5K 30 Round - LEO Marked Magazine - TiN/CRN Coated Elevate your collection with our TiN coated factory Heckler & Koch magazines. Each magazine begins as a new German 30-round 9mm mag that is expertly disassembled, TiN coated,...
    HKP-21792-M
    $159.95
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    $159.95
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  • New - Franklin Armory - BFSIII MP5 – Binary Trigger Group – SEF Navy Housing - HKP-19506-M HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm
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    HK MP5, SP5 Binary Trigger Group – SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    $899.95
    Franklin Armory - BFSIII HK-C1 – Binary Trigger Group – SEF Navy Housing SEF Navy style- HK binary trigger group  Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger...
    HKP-19506-M
    $899.95
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    $899.95
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  • Used - H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED - HKP-20064 HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped and Pinned - USED
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    HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped and Pinned - USED

    H&K Heckler & Koch

    $149.95
    H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED Hand-selected for the highest quality, these "like new" H&K SP5K SEF style trigger housings have been meticulously clipped and pinned to fit the correct SP5K style shelf...
    HKP-20064
    $149.95
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    $149.95
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  • New - Bore Boss Pull-Through Bore Cleaner - .44/.45 - HKP-19401 Bore Boss Pull-Through Bore Cleaner - .44 / .45 ACP
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    Bore Boss Pull-Through Bore Cleaner - .44 / .45 ACP

    Real Avid

    $12.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .44/.45 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...
    HKP-19401
    $12.95
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    $12.95
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  • New - RCM 300 BLK Locking Piece - HKP-15547 HK33, HK93 Locking Piece - 300 BLK
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    HK33, HK93 Locking Piece - 300 BLK

    RCM

    $49.95
    RCM 300 BLK Locking Piece New US manufactured 300 BLK locking piece for custom 300 builds or other custom 300 BLK HK style roller locked firearms. Compatible With: HK 93, HK33  
    HKP-15547
    $49.95
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    $49.95
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  • New - H&K MP5 40/10 30 Round Magazine Spring - HKP-01056
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    HK MP5 Magazine Spring - .40 S&W, 10mm - 30 Round

    H&K Heckler & Koch

    $9.95
    H&K Heckler and Koch 30 Round Magazine Spring for HK MP5 40,10 New HK German MP5 40/10 magazine spring for the 30 round magazine. Hard to find and a must have repair and replacement item.
    HKP-01056
    $9.95
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    $9.95
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