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 HK21 100 Round Belt with Starter Tab - HKP-21890 HK23, HK21, HK11 Ammunition Belt with Starter Tab - 100 Round
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    HK23, HK21, HK11 Ammunition Belt with Starter Tab - 100 Round

    H&K Heckler & Koch

    $59.95
    H&K HK21 100 Round Belt with Starter Tab - 7.62x51/.308 Custom 100 round belt for HK21 and MG3 belt-fed rifles because 50 rounds just isn't enough! Compatible With: HK 23/21/11
    HKP-21890
    $59.95
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    $59.95
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  • New - Zenith 30 Round HK MP5 9mm Magazine - TiN Coated - HKP-21645 HK MP5 Magazine - 9mm - 30 Round - TiN Coated
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    HK MP5 Magazine - 9mm - 30 Round - TiN Coated

    Zenith

    $99.95
    Zenith 30 Round HK MP5 9mm Magazine - TiN Coated Elevate your gear with our TiN coated Zenith magazines. Each magazine begins as a regular 9mm, 30 round mag that is expertly disassembled, coated with durable TiN, and meticulously reassembled for optimal...
    HKP-21645
    $99.95
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    $99.95
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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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  • New - HK UMP & G36 Pistol Grip Storage Insert - HKP-20176 HK G36, UMP Pistol Grip Storage Insert
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    HK G36, UMP Pistol Grip Storage Insert

    USA

    $16.95
    HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork,...
    HKP-20176
    $16.95
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  • On Sale
    New - HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH - HKP-02188 HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH
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    HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH

    USA

    Now: $47.95
    Was: $74.95
    HKP .45 ACP 4 Prong Pistol Flash Hider - Threaded .578x28 RH This flash hider adds a neat look & feel that provides outstanding flash hiding capabilities. Perfect for adding a unique look to your .45 ACP. Made in the USA, each flash hider is made of...
    HKP-02188
    Now: $47.95
    Was: $74.95
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    Now: $47.95
    Was: $74.95
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  • New - H&K G36 (5.56/.223) 4 Position Retractable Stock - Folding - HKP-02682
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    HK G36 Retractable Buttstock - 4 Position - Folding

    H&K Heckler & Koch

    $289.95
    HK G36, G36k, G36C, & SL8 Conversion Rear Stock Assembly The G36 KV stock, as it is known, was built by HK for a military contract and is built HK tough with an overall length of 8.5 inches (fully collapsed) to 11.40 inches when fully extended. Each...
    HKP-02682
    $289.95
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    $289.95
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  • New - H&K 33/91/G3 Complete Triple Frame Front Sight Tower - HKP-18777 HK33, HK91, G3 Complete Triple Frame Front Sight Tower
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    HK33, HK91, G3 Complete Triple Frame Front Sight Tower

    H&K Heckler & Koch

    $29.95
    NEW HK German Front Sight Tower Triple Frame G3 triple frame in. Comes complete with sight blade and roll pin. Compatible With: HK G3 HK G3K HK 93 HK 33
    HKP-18777
    $29.95
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    $29.95
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  • New - HKP MP5K 9mm Trunnion - HKP-17964 HK MP5K Trunnion - 9mm
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    HK MP5K Trunnion - 9mm

    HKP HK Parts

    $57.95
    HK MP5K Trunnion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK spec...
    HKP-17964
    $57.95
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    $57.95
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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 - GSG9 HK G36, HK G36K, HK G36C Full Auto Tungsten Filled Bolt Carrier - Black - HKP-19030 HK G36, G36K, G36C Bolt Carrier - Full Auto - Tungsten Filled
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    HK G36, G36K, G36C Bolt Carrier - Full Auto - Tungsten Filled

    GSG9

    $549.95
    HK G36 Tungsten Filled - Bolt Carrier Complete - Full Auto Compatible With: G36 G36K G36C Will NOT work with a factory HK SL8
    HKP-19030
    $549.95
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    $549.95
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  • Used - H&K HK91, G3, PTR Parkerized Backplate & Recoil Rod Assembly - Parkerized - HKP-19692 HK91, G3, PTR Backplate, Recoil Rod Assembly - Parkerized
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    HK91, G3, PTR Backplate, Recoil Rod Assembly - Parkerized

    H&K Heckler & Koch

    $34.95
    Parkerized Backplate - HK91, G3, PTR Surplus German HK backplate that has been refinished and reparkerized. 
    HKP-19692
    $34.95
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  • New - H&K HK MR556/MR762/416 Extractor Spring Buffer - HKP-00051
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    HK416, MR556, MR762 Extractor Spring Buffer

    H&K Heckler & Koch

    $14.95
    H&K HK MR556/MR762/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 HK 416 HK MR762
    HKP-00051
    $14.95
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    $14.95
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