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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  • On Sale
    HK21 FMP Complete Build Kit- Matching Numbers - MM Barrel HKP HK Parts HKP-21626-1 HK21 FMP Complete Build Kit- Matching Numbers - MM Barrel HKP HK Parts HKP-21626-1
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    HK21 FMP Complete Build Kit - Non Matching Numbers - MM Barrel

    FMP HK CONTRACT

    Now: $3,849.95
    Was: $4,294.97
    HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...
    HKP-22378
    Now: $3,849.95
    Was: $4,294.97
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  • HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny
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    HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny

    F5 MFG

    $324.95
    HK MP5K, SP5K ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their K and other platforms.  This drop-in ready assembly attaches with the K's two...
    HKP-22351-M
    $324.95
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  • HK MP5 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22321 HK MP5 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22321
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    HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip

    HKP HK Parts

    $189.95
    HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...
    HKP-22321
    $189.95
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  • New - MKE AP5-P/M Handguard with Hand Stop - HKP-22221 Century Arms AP5-P, AP5-M Handguard with Handstop
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    Century Arms AP5-P, AP5-M Handguard with Handstop

    MKE

    $34.95
    MKE AP5-P/M Handguard with Hand Stop MKE handguard for the MKE manufactured Century AP5-P and AP5-M.  Please note: Will fit other MP5K style receivers with some slight fitting.  Compatible With: MKE/Century Arms AP5-P MKE/Century Arms...
    HKP-22221
    $34.95
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  • New - HK MP5K Magpul UCS Stock with Adapter - HKP-22198 HK MP5K Ultra Carbine Stock and Adapter
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    HK MP5K Ultra Carbine Stock and Adapter

    HKP HK Parts / Magpul

    $312.95
    HK MP5K Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5K pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...
    HKP-22198
    $312.95
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  • New - Magpul M-Lok Offset Light / Optic Mount - HKP-21875 M-Lok Optic Mount - Offset Light
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    M-Lok Optic Mount - Offset Light

    Magpul

    $36.95
    Magpul M-Lok Offset Light / Optic Mount - Aluminum The M-LOK Offset Light/Optic Mount, Aluminum provides the user with an ambidextrous platform to mount weapons lights or optics at both the 11 and 1 o'clock positions on M-LOK compatible hand guards and...
    HKP-21875
    $36.95
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  • HK MP5K, AP5-P Trigger Group HK MP5K, AP5-P Trigger Group
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    HK MP5K, AP5-P Trigger Group

    MKE

    $479.95
    Century AP5-P, AP5-M Trigger Group This trigger group serves as a direct replacement for AP5-P, AP5-M, Zenith clones, and factory MP5K receivers. For customers needing compatibility with shelfed receivers, we also offer a clip-pin service as an optional...
    HKP-21668
    $479.95
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  • HK MP5K Trigger Housing - AR Match
HK MP5K Trigger Housing - AR Match
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    HK MP5K Trigger Housing - AR Match

    Magpul

    $349.95
    Magpul HK MP5K AR Trigger Housing This match-grade trigger housing is expertly crafted to elevate the performance of your HK MP5K. Our enhanced HK-AR Navy ambidextrous lower housing and Magpul MOE grip not only provide a modern aesthetic but also feature...
    HKP-21379-M
    $349.95
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  • Out Of Stock
    New - HK MR556 Eyelet Sling Adapter - HKP-21064-M HK416, MR556, HK417, MR762 Eyelet Sling Adapter

    HK416, MR556, HK417, MR762 Eyelet Sling Adapter

    HKP HK Parts

    $89.95
    HK MR556, MR762 Eyelet Sling Adapter for Carrying Sling  Eyelet sling adapter for HK MR556 and MR762 platforms. Designed to match RAL8000 and tanodized handguards, this adapter installs at the front of the rail to provide a secure sling attachment...
    HKP-21064-M
    $89.95
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    $89.95
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  • On Sale
    New - TPM - Titanium 3 Port Muzzle Brake .30 Cal - Black - HKP-20777 Muzzle Brake - Titanium 3 Port .30 Cal
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    Muzzle Brake - Titanium 3 Port .30 Cal

    Tactical Precision MFG

    Now: $42.95
    Was: $84.99
    TPM - Titanium 3 Port Muzzle Brake .30 Cal This radially ported muzzle brake is for Ruger American and many other lightweight mountain rifles. Features: Weight:0.67 oz Material: Grade 5 titanium Color: Black Threading: 5/8x24
    HKP-20777
    Now: $42.95
    Was: $84.99
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    Was: $84.99
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  • New - H&K A3 Parkerized Stock Protective Cover - HKP-20649 HK A3 Buttstock Protective Cover - Parkerized
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    HK A3 Buttstock Protective Cover - Parkerized

    H&K Heckler & Koch

    $19.95
    H&K A3 Parkerized Stock Protective Cover The perfect replacement part for all HK G3, HK33, and MP5 collapsible stocks issued with steel covers. Complete with locking spring clips welded in place. 
    HKP-20649
    $19.95
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  • On Sale
    New - HKP Short Sleeve Tee Female - Gray - HKP-21020-M
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    HKP Women's Shirt - Short Sleeve - Gray

    HKP HK Parts

    Now: $9.99
    Was: $14.95
    HKP Short Sleeve Shirt for Women in Gray Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Features: Female fit Fine cotton High fidelity DTG...
    HKP-21020-M
    Now: $9.99
    Was: $14.95
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