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 MP5K/SP89/SP5K 9mm Cocking Tube Support Complete - HKP-00399
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    HK MP5K, SP89, SP5K Cocking Tube Support - 9mm - Complete

    H&K Heckler & Koch

    $123.99
    HK German MP5K, SP89, & SP5K Cocking Tube Support Complete - New Each support is complete with a detent and spring installed. These can also be used to replace the plastic or cheaply made steel or aluminum clone parts found in many clones and builds...
    HKP-00399
    $123.99
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  • New - SB Tactical SBM4 Pistol Stabilizing Brace - HKP-17903 SB Tactical SBM4 Pistol Stabilizing Brace
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    SB Tactical SBM4 Pistol Stabilizing Brace

    SB Tactical

    $74.99
    SB Tactical SBM4 Pistol Stabilizing Brace The SBM4 is the evolution of the original SB15 Pistol Stabilizing Brace . . . thinner, lighter and with enhanced cheek weld ergonomics. Includes: Pistol stabilizing brace Adjustable nylon stabilizing...
    HKP-17903
    $74.99
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  • New - HKP Front Sight Tower Ambi Sling Attachment Weldment - HKP-17881 HKP Front Sight Tower Ambi Sling Attachment Weldment
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    HKP Front Sight Tower Ambi Sling Attachment Weldment

    HKP HK Parts

    $14.95
    HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...
    HKP-17881
    $14.95
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  • Used - H&K HK 416/MR556 Enhanced Buffer Tube-Commercial - HKP-15424 H&K HK 416/MR556 Enhanced Buffer Tube-Commercial H&K Heckler & Koch HKP-15424
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    HK416, MR556 Buffer Tube - Enhanced - Commercial

    H&K Heckler & Koch

    $249.95
    HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial: Genuine HK German manufactured 416, MR556 new style latest generation marine environment & over the beach buffer tube. Each Commercial buffer tube has built in drainage...
    HKP-15424
    $249.95
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  • HK MP5K, AP5-P Vertical Foregrip HK MP5K, AP5-P Vertical Foregrip
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    HK MP5K, AP5-P Vertical Foregrip

    MKE

    $44.95
    MKE Made Vertical Foregrip MKE vertical grip for the HK MP5K models. Compatible With: HK MP5K, SP89 HK SP5K Century AP5-P, AP5-M In-spec clones and custom builds
    HKP-22471
    $44.95
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  • Out Of Stock
    HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls

    HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls

    AS Designs

    $689.95
    HK416, MR556 A4 3-Position ARC-Fire with Geissele*** Trigger and Ambidextrous Controls AS Designs' ARC-Fire (Active Reset Clutch) trigger is an innovative take on forced reset triggers.  The trigger is reset immediately after each shot, resulting in...
    HKP-22435
    $689.95
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  • HK MP5, MP5K Optic Mount - Raised - Aimpoint ACRO, T1, T2 - Picatinny HK MP5, MP5K Optic Mount - Raised - Aimpoint ACRO, T1, T2 - Picatinny
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    HK MP5, MP5K Optic Mount - Raised - Aimpoint ACRO, T1, T2 - Picatinny

    MI Midwest Industries

    $104.95
    Midwest Industries HK MP5, MP5K Tall Optic Mount 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 micro red dots with a...
    HKP-22396-M
    $104.95
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    $104.95
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  • On Sale
    New - MKE HK MP5 Rear Sights Locking Washer - HKP-22240
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    HK MP5 Rear Sights Locking Washer

    MKE

    Now: $1.95
    Was: $2.45
    MKE HK MP5 Rear Sights Locking Washer Secures the rear sight assembly on MKE and HK MP5 models to maintain proper alignment. Compatible With: Century Arms AP5 HK MP5/MP5K HK SP5/SP5K Will work with all 90 series firearms
    HKP-22240
    Now: $1.95
    Was: $2.45
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    Now: $1.95
    Was: $2.45
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  • New - HKP 90 Series F1 Flat Trigger - Skeletonized - HKP-21580 HK MP5, G3, HK93 Flat Trigger - Skeletonized
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    HK MP5, G3, HK93 Flat Trigger - Skeletonized

    HKP HK Parts

    $68.95
    HKP 90 Series Flat Trigger - Skeletonized - USA The HK Parts Skeletonized flat trigger for 90 series firearms offers improved control, reduced weight, and a custom look. Precision-machined from billet ordnance-grade steel with a QPQ nitride finish for...
    HKP-21580
    $68.95
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  • On Sale
    New - HKP HK MP7 Dual Magazine Clamp - HKP-21597-M HK MP7 Dual Magazine Clamp
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    HK MP7 Dual Magazine Clamp

    HKP HK Parts

    Now: $39.96
    Was: $49.95
    HKP HK MP7 Dual Magazine Clamp Our MP7 dual mag clamp was designed for quick mag swaps at the range or in the real world.  The clamp works with any capacity MP7 magazine. Compatible With: HK MP7
    HKP-21597-M
    Now: $39.96
    Was: $49.95
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  • New - Omega HK UMP Cocking Handle Assembly - HKP-21271
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    HK UMP Cocking Handle - Assembly

    OMEGA

    $34.95
    Omega USC/UMP Cocking Handle Assembly   Omega UMP cocking handle assembly is a great complete replacement for broken or worn out cocking handle assemblies. Everything you need for a complete replacement. US made by Omega. UMP cocking handle assembly...
    HKP-21271
    $34.95
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  • On Sale
    New - HKP V51 Backplate - HKP-21201 HK V51 Backplate
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    HK V51 Backplate

    HKP HK Parts

    Now: $99.95
    Was: $167.95
    HKP V51 Backplate HK Parts brings you a long lost part that was no longer available till now. The Vector Arms V51 firearms was one of the most aclaimed PDW of its time but replacement parts have become difficult to source. We now take like new G3...
    HKP-21201
    Now: $99.95
    Was: $167.95
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    Now: $99.95
    Was: $167.95
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