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 91/G3/MSG90 (7.62x51/.308) 10 Round Magazine - Steel - HKP-01607 HK91, G3, PTR Magazine - 10 Round - Steel
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    HK91, G3, PTR Magazine - 10 Round - Steel

    H&K Heckler & Koch

    $73.95
    10 Round Magazine - Steel This part counts as 1 US-made part for 922r compliance for HK rifles. This magazine was made by Heckler and Koch and converted to ten rounds in the United States using the US-made floorplate. Compatible With: HK91 HK G3 HK...
    HKP-01607
    $73.95
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  • New - H&K MP5 A4/A5 & MP5SD Operators Red Book - HKP-02227
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    HK MP5 A4/A5 & MP5SD Operators Red Book

    H&K Heckler & Koch

    $18.95
    New HK German MP5A4, MP5A5, & MP5SD Operators Red Book
    HKP-02227
    $18.95
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    $18.95
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  • Used - H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - LIKE NEW - HKP-21477 HK 91, G3 Handguard - Slimline Style - OD Green - LIKE NEW
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    HK 91, G3 Handguard - Slimline Style - OD Green - LIKE NEW

    H&K Heckler & Koch

    $24.95
    H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - LIKE NEW Like new German military surplus O.D. green slimline forearm with heat shield. For use on standard contour barrels not the thicker barrel profiles. Compatible With: HK G3 HK 91 HK PTR...
    HKP-21477
    $24.95
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    $24.95
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  • New - HKP HK MP5 Picatinny Rail Brace/Stock Adapter - HKP-21426 HK MP5 Stock or Brace Adapter - Picatinny Rail
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    HK MP5 Stock or Brace Adapter - Picatinny Rail

    HKP HK Parts

    $119.95
    HKP HK MP5 Picatinny Rail Brace/Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock or brace to your MP5. The 1913 style stocks & braces lock in place and provide a better cheek weld hieght option than many traditional...
    HKP-21426
    $119.95
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  • New - Nefarious Arms - NAS HK 416 Adjustable Gas Block - HKP-21040 HK416, MR556 Adjustable Gas Block - 11-20" A1 Barrels - NA5
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    HK416, MR556 Adjustable Gas Block - 11-20" A1 Barrels - NA5

    Nefarious Arms

    $374.95
    Nefarious Arms - NA5 HK 416 Adjustable Gas Block Nefarious Arm user configurable 2-position adjustable gas block compatible with 11″ – 20″ A1 MR556 and HK416 barrels.  Each gas block ships with 6 vent screws, a screwdriver,...
    HKP-21040
    $374.95
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    $374.95
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  • New - H&K HK G36, HK SL8 Ambidextrous Sling Pin - HKP-00619
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    HK G36, SL8 Ambidextrous Sling Pin

    H&K Heckler & Koch

    $49.95
    HK German G36/SL8 Ambidextrous Sling Pin This part replaces all of the HK SL8 or G36 push pins with a loop for the sling. This can be moved to attach a sling on either the left or right sides with ease.
    HKP-00619
    $49.95
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  • New - B&T MP5SD 9mm Tri- Rail Mount For Suppressor - HKP-16880 HK MP5SD Tri- Rail Mount for Suppressor - 9mm
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    HK MP5SD Tri- Rail Mount for Suppressor - 9mm

    B&T Brugger & Thomet

    $158.95
    B&T MP5SD 9mm Tri- Rail Mount for Suppressor Can accommodate suppressors up to 1.60 inches in overall diameter. Specifications: Color: Black Diameter max: 57.5 mm Length max: 44.5 mm Length of right rail: 30 mm Length of left rail: 30 mm Length of...
    HKP-16880
    $158.95
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  • New - HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH - HKP-21635 HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH
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    HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH

    HKP HK Parts

    $29.95
    HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro comp easily threads on to the end of any factory...
    HKP-21635
    $29.95
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  • New - HKP G3/33/91/93 Bipod Replacement Feet Set - Steel - HKP-21310 HKP G3/33/91/93 Bipod Replacement Feet Set - Steel
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    HKP G3/33/91/93 Bipod Replacement Feet Set - Steel

    HKP HK Parts

    $18.95
    HKP G3/33/91/93 Bipod Replacement Feet - Set of Two (2) Replacement feet set for original H&K bipods.  Our replacement feet are suitable to replace both steel and plastic feet in factory HK bipods. Each kit includes a left and right bipod foot...
    HKP-21310
    $18.95
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  • New - H&K G36 FBI 0,1 Lower Complete - HKP-00628 HK G36 FBI 0,1 Lower Complete
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    HK G36 FBI 0,1 Lower Complete

    $499.95
    HK German G36, G36K, G36C - FBI (0,1) Lower This is a popular item for use on the SL8 to G36 conversions. The (0,1) G36 lowers are hard to obtain, and availability is limited.  
    HKP-00628
    $499.95
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  • New - Trijicon, HKP HK MP5 6.5 MOA / Optic Mount Bundle - Black - HKP-20734 HK MP5, SP5K Optic Mount - Trijicon RMR - 6.5 MOA
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    HK MP5, SP5K Optic Mount - Trijicon RMR - 6.5 MOA

    Trijicon

    $619.95
    RMR Optic Mount - Bundle - HK MP5 Includes:  (1)Trijicon RMR Type 2 Red Dot Sight 6.5 MOA Red Dot, Adjustable LED (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes the...
    HKP-20734
    $619.95
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    $619.95
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  • New - XS Sight Systems Trituim Front Night Sight 90 Series Standard Dot - HKP-19602 HK90 Series Front Night Sight - Tritium - Standard Dot
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    HK90 Series Front Night Sight - Tritium - Standard Dot

    XS Sights

    $92.95
    XS Sights Tritium Night Sight  - Standard Dot Standard Dot front sights use a patent-pending glow dot that absorbs light and glows in low light levels before it is dark enough to see the tritium. Green is a great option for low light and has a very...
    HKP-19602
    $92.95
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    $92.95
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