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 - MM HK 21E/23E/MSG90 (7.62x51/.308) & (5.56/.223) Railed Scope Mount - HKP-01923 HK21E, HK23E, MSG90 Optic Mount - Picatinny Rail
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    HK21E, HK23E, MSG90 Optic Mount - Picatinny Rail

    Michaels Machines

    $687.95
    HK21E/23E Or MSG90 Quick Release Full Picatinny Rail Scope Mount Rock-solid scope made in the USA to factory HK specs. Available exclusively at HK Parts. Please Note: These units are shipped in bulk and will have handling marks on the rails. Units are...
    HKP-01923
    $687.95
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    $687.95
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  • New - RCM MP5 40/10 Complete Bolt Head - HKP-02664 HK MP5 Complete Bolt Head - 10mm / .40 S&W
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    HK MP5 Complete Bolt Head - 10mm / .40 S&W

    RCM

    $211.95
      HK MP5 40/10 Bolt Head Complete - RCM- US Each bolt head incorporates the same enhanced material as all of the new RCM products. Ideal to replace out of spec, worn or broken bolt heads or for that custom build. Each bolt head will work and fit on...
    HKP-02664
    $211.95
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    $211.95
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  • Out Of Stock
    New - H&K MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack - HKP-16971 HK MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack

    HK MP5, MP5K 9mm, Ambidextrous Navy Trigger Pack

    H&K Heckler & Koch

    $0.00
    H&K MP5/K 9mm Ambidextrous Navy Style Trigger Pack Designed for HK MP5 and MP5K 9mm ambidextrous housings and selector levers, this trigger pack features a Navy-style configuration with three positions: Safe, Semi, and Full. It offers the classic...
    HKP-16971
    $0.00
    Out Of Stock
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  • New - H&K 90 Series Hammer Spring Bushing For Burst Trigger Packs - HKP-02398 HK MP5, HK90 Series Hammer Spring Bushing - Burst
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    HK MP5, HK90 Series Hammer Spring Bushing - Burst

    H&K Heckler & Koch

    $19.99
    90 Series Hammer Spring Bushing For Burst Trigger Packs This part will fit both two and three-round burst trigger packs. 
    HKP-02398
    $19.99
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  • New - B&T MP5, 94 Low Mount, Extra Long Scope Rail - HKP-16881 HK MP5 optic mount installed on receiver with low profile Picatinny rail
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    HK MP5, HK94 Optic Mount - 246mm - Low Profile - Picatinny

    B&T Brugger & Thomet

    $239.95
    B&T MP5, 94 Low Mount, Extra Long Scope Rail Swiss made, military grade, B&T MP5 extra long low-profile scope mount. Requires the removal of the MP5 rear sight. Provides the longest possible Picatinny rail. Specifications: Color: Black Height...
    HKP-16881
    $239.95
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    $239.95
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  • New - Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud - HKP-15737 Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud Ergo HKP-15737
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    Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud

    Ergo

    $19.95
    Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud The ERGO 1.5" Bipod Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Features: Slides onto Picatinny rails and held...
    HKP-15737
    $19.95
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  • HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny
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    HK MP5, MP5K Optic Mount - 9mm - Raised - Picatinny

    MI Midwest Industries

    $119.95
    Midwest Industries HK MP5, MP5K Tall Optic Mount - 1913 Picatinny Rail Tall, clamp-on optic mount for HK MP5 and MP5K pattern firearms, giving a higher, more upright sightline while still allowing use of the factory diopter sights. Ideal for mounting...
    HKP-22397
    $119.95
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  • On Sale
    Franklin Armory BFSIII AK-C1 Standard Caliber - BLEMISHED FA Franklin Armory HKP-19833-B Franklin Armory BFSIII AK-C1 Standard Caliber - BLEMISHED FA Franklin Armory HKP-19833-B
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    AK Binary Trigger - Curved - BFSIII - BLEMISHED

    FA Franklin Armory

    Now: $385.99
    Was: $534.95
    Franklin Armory BFSIII AK-C1 Standard Caliber - 7.62x39 - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The...
    HKP-19833-B
    Now: $385.99
    Was: $534.95
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    Now: $385.99
    Was: $534.95
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  • HK416, MR556, HK417, MR762 Selector Lever - Ambi - Left
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    HK416, MR556, HK417, MR762 Selector Lever - Ambi - Left

    H&K Heckler & Koch

    $11.95
    Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer left side selector lever.  Compatible With: HK416 A1/A3 HK MR556 A1 HK417 HK MR762 A1  
    HKP-22310
    $11.95
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  • Used - H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - HKP-22212 HK G36 30 Round Magazine - LEO Marked - USED
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    HK G36 30 Round Magazine - LEO Marked - USED

    H&K Heckler & Koch

    $195.99
    H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED CONDITION VARIES BY UNIT - SOLD INDIVIDUALLY HK German 30-round magazine, LEO marked, designed to perfectly fit all G36, G36K, G36C variants, and converted SL8's with the G36 magwell...
    HKP-22212
    $195.99
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    $195.99
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  • New - HKP HK MP5K SD Handguard Conversion - HKP-22201 HK MP5K Handguard Conversion - SD Style
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    HK MP5K Handguard Conversion - SD Style

    HKP HK Parts

    $299.95
    HKP HK MP5K SD Handguard Conversion  Transform your MP5K into a stunning MP5KSD with our revolutionary MP5K SD handguard conversion! This cutting-edge drop-in handguard is expertly designed to give your standard MP5K the iconic suppressed SD look...
    HKP-22201
    $299.95
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    $299.95
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  • New - H&K HK MR556 A4/A5 11" Barrel - HKP-21932 HK416A5, MR556 Barrel - 5.56 / .223 - 11"
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    HK416A5, MR556 Barrel - 5.56 / .223 - 11"

    H&K Heckler & Koch

    $424.95
    Heckler and Koch 11" Barrel for HK416A5, MR556 A4, MR556 A5 Factory German 11" HK416A5, MR556 barrel. Cold hammer-forged and built to HK’s standard for durability, accuracy, and service life. The 1:7 twist rate stabilizes a wide range of 5.56 NATO...
    HKP-21932
    $424.95
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    $424.95
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