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 G36 & SL8 Firing Pin - All Variants - Black - HKP-00289
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    HK G36, SL8 Firing Pin - All Variants

    H&K Heckler & Koch

    $59.95
    HK German G36/SL8 Firing Pin This is a great spare to have on hand. The firing pin fits all G36, G36K, G36C & SL8 variants. Compatible With: HK G36/G36K/G36C HK SL8
    HKP-00289
    $59.95
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  • Out Of Stock
    New - B&T 9mm Dual Mag Clamp - HKP-17440

    B&T 9mm Dual Mag Clamp

    B&T Brugger & Thomet

    $52.00
    B&T 9mm Dual Mag Clamp Double up on your magazines with this magazine clamp made by Brügger & Thomet. Compatible With: B&T APC9 B&T GHM9 B&T SPC9
    HKP-17440
    $52.00
    Out Of Stock
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    $52.00
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  • New - HKP HK 416/COLT M4 .22 10 Round Magazine Spring - HKP-14542
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    HK416, COLT M4 Magazine Spring - .22LR - 10 Round

    HKP HK Parts

    $2.95
    HKP 10 Round HK 416/COLT M4 .22 Magazine Spring A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New production mag spring for your Walther/Umarex 416 & Colt 10 round 22 LR...
    HKP-14542
    $2.95
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    $2.95
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  • Out Of Stock
    New - H&K HK 416/MR556 9" Quad Rail - HKP-16858 HK416, MR556 9" Quad Rail

    HK416, MR556 9" Quad Rail

    H&K Heckler & Koch

    $419.95
    H&K HK 416/MR556 9" Quad Rail HK German 416, MR556 Quad Rail without mounting screw. Specifications: Length: 9 1/4" Color: charcoal gray Compatible With: HK MR556 HK 416
    HKP-16858
    $419.95
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  • New - H&K HK MR556/416 E1 Charging Handle - RAL 8000 - HKP-18502 HK416 E1, MR556 Charging Handle - RAL8000
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    HK416 E1, MR556 Charging Handle - RAL8000

    H&K Heckler & Koch

    $169.99
    New RAL 8000 HK Designed HK416, MR556 Ambidextrous Charging Handle (E1). The E1 HK 416 FDE charging handle release latch has the ability of being swapped from the left side (E1) to the right sight (E2) with simple tools. HK's own design boasts a smooth...
    HKP-18502
    $169.99
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  • New - G36E Bayonet Lug Assembly HK German - HKP-00354
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    G36E Bayonet Lug Assembly HK German

    H&K Heckler & Koch

    $89.95
    HK German Factory G36E Bayonet Lug  Rare and hard to find. The inside diameter (ID) is 16mm in size. A great alternative for those that do SL8 conversions as well as M27 look clone barrel conversions. You will need the G36 bayonet lug roll pin as it...
    HKP-00354
    $89.95
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  • New - HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin-Thumb Screw Style - HKP-15731
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    HK UMP, USC Stock Block B Sling Pin - Thumb Screw Style

    HDPS

    $74.95
    HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin-Thumb Screw Style The original thumb screw version for all stock block B's.
    HKP-15731
    $74.95
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  • New - HK 91/G3 (7.62x51/.308) Bolt Head Complete - US Made - HKP-00839 HK91, G3 Bolt Head Complete - US Made
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    HK91, G3 Bolt Head Complete - US Made

    $149.95
    Bolt Head - Complete This item is a complete bolt head using a combination of new HK German and New US-made parts. This part counts as 1 US-made compliant part for the 922r compliance. Compatible With: HK 91 HK G3 PTR-91 SAR3/8 Other HK .308 Clones or...
    HKP-00839
    $149.95
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  • New - H&K MP5 40/10 Bolt Hold Open Lever - HKP-01471
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    HK MP5 Bolt Catch Lever - 10mm / .40 S&W

    H&K Heckler & Koch

    $74.95
    MP5 40, MP5 10 Bolt Hold Open Lever - German HK - New  A great upgrade for the out-of-spec and sub-par quality part found on clone builds. Compatible With: MP5 40 MP5 10mm MP5 .357 Sig MP5 9 X 25 Dillon
    HKP-01471
    $74.95
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  • Out Of Stock
    New - H&K MP5 40/10 Chamber Flute Brush - HKP-00139

    HK MP5 Barrel Chamber Flute Cleaning Brush - 10mm / .40 S&W

    H&K Heckler & Koch

    $29.95
    New HK German MP5 40, MP5 10mm Chamber Flute Brush This is a must-have brush to keep the flute clean and the firearm running the way it should. Get this item while you can, it is no longer in production and is hard to find. Compatible With: MP5 40 MP5...
    HKP-00139
    $29.95
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  • New - HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - HKP-18052
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    HK MP5SD Parts Kit - Pistol Build - 9mm - Receiver Flat & Weldment Set

    HKP HK Parts

    $2,249.95
    HKP HK MP5SD Kit - Pistol Build - 9mm  MP5SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts. This is the first time that these iconic kits have been...
    HKP-18052
    $2,249.95
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  • New - Magpul RSA - Rail Sling Attachment - HKP-02423 Magpul RSA - Rail Sling Attachment Magpul HKP-02423
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    Magpul RSA - Rail Sling Attachment

    Magpul

    $29.95
    Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.
    HKP-02423
    $29.95
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