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 HK21 FMP Complete Build Kit - Matching Numbers - 14.5" Barrel - HKP-21848 HK21 FMP Complete Build Kit - Non Matching Numbers - 14.5" Barrel
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    HK21 FMP Complete Build Kit - Non Matching Numbers - 14.5" Barrel

    HKP HK Parts

    $3,124.97
    HK21 Complete Build Kit- Non Matching Numbers - 14.5" Barrel HK Parts bring you yet another exhaustive parts kit.  Our HK21 kit includes everything you need to resurrect an iconic classic and hit the range for some belt-fed action. Paired with...
    HKP-21848
    $3,124.97
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  • New - HKP MP5K 10mm Pistol Build Kit - HKP-21533 HK MP5K Parts Kit - 10mm - Pistol Build
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    HK MP5K Parts Kit - 10mm - Pistol Build

    HKP HK Parts

    $1,889.95
    HKP MP5K 10mm Pistol Build Kit MP5K 10mm complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and suppressors...
    HKP-21533
    $1,889.95
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  • New - MI/HKP HK MP5 Alpha Folding Brace/Stock Adapter - HKP-21512-M HK MP5 Stock or Brace Adapter - Folding - Alpha
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    HK MP5 Stock or Brace Adapter - Folding - Alpha

    MI Midwest Industries

    $419.95
    MI/HKP HK MP5 Alpha Folding Brace/Stock Adapter The Midwest Industries Alpha folding stock paired with the HK Parts Picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your exact style of...
    HKP-21512-M
    $419.95
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    $419.95
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  • HK MP5, SP5 Handguard - Slimline Style HK MP5, SP5 Handguard - Slimline Style
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    HK MP5, SP5 Handguard - Slimline Style

    HKP HK Parts

    $22.95
    HKP MP5, SP5 Slimline Handguard Once a rare find after HK discontinued it, the classic slimline handguard returns with a fresh, U.S-made update. Specially engineered for the MP5, SP5, and compatible clones, this new version features a reimagined pattern...
    HKP-21471
    $22.95
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    $22.95
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  • On Sale
    New - TPM - Fluted Bolt Knob - Black - HKP-20786 Bolt Knob - Fluted
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    Bolt Knob - Fluted

    Tactical Precision MFG

    Now: $24.95
    Was: $48.99
    TPM - Fluted Bolt Knob These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle.  Features: Dimensions:1.5" x 7/8" x 7/8" Weight: 2 oz Threading: 5/16x24
    HKP-20786
    Now: $24.95
    Was: $48.99
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  • On Sale
    New - TPM - Grenade Bolt Knob - Black - HKP-20770 Bolt Knob - Grenade
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    Bolt Knob - Grenade

    Tactical Precision MFG

    Now: $24.75
    Was: $48.99
    TPM - Grenade Bolt Knob TPM grenade bolt knobs are a great way to dress up any rifle. It has a great feel and looks fantastic. Features: Dimensions: 1.90" x 7/8" x 7/8" Weight: 2 oz. Threading: 5/16x24  Made in the USA Compatible With: Any...
    HKP-20770
    Now: $24.75
    Was: $48.99
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  • New - Aimpoint Absolute Co-Witness T1 Quick Release Mount - HKP-19336 T1 Optic Mount - Picatinny - Quick Release
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    T1 Optic Mount - Picatinny - Quick Release

    AIM

    $38.95
    AimSports - T1 Quick Release Mount - Absolute Co-Witness Features a machined recoil lug and steel hardware to prevent wear between mounting surfaces. Utilizing a quick release base, the generously sized lever is textured for easy operation under any...
    HKP-19336
    $38.95
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  • On Sale
    New - GHW Scorpion Tailhook Mod 1 Brace/Stock Adapter - HKP-19137
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    Scorpion Stock or Brace Adapter - Tailhook - Mod 1

    Gear Head Works

    Now: $9.95
    Was: $19.95
    GHW Scorpion Tailhook Mod 1 Brace/Stock Adapter This adapter allows the user to mount the Patented Tailhook Mod 1 brace to the factory CZ folding cheek rest. It is injection molded reinforced polymer and can be installed to your choice of 3 positions...
    HKP-19137
    Now: $9.95
    Was: $19.95
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  • New - B&T HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider - HKP-16891 HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider
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    HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider

    B&T Brugger & Thomet

    $129.95
    B&T HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider Each flash hider includes the proper quick detach system to take the flash hider on and off. Each flash hider features a 5 prong design. Specifications: Diameter Max 31 mm Length Max 73...
    HKP-16891
    $129.95
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    $129.95
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  • New - B&T TP9/ MP9 RH Holster - Black - HKP-17295
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    B&T TP9, MP9 Holster - RH

    B&T Brugger & Thomet

    $200.00
    B&T TP9/ MP9 RH Holster This B&T holster is Swiss-made for MP9 and TP9 pistols. It is adjustable and lightweight for the ultimate concealment for a B&T pistol. Compatible With: B&T TP9 B&T MP9
    HKP-17295
    $200.00
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    $200.00
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  • On Sale
    New - HKP Short Sleeve Tee Female - OD Green - HKP-21017-M
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    HKP Women's Shirt - Short Sleeve - OD Green

    HKP HK Parts

    Now: $9.99
    Was: $14.95
    HKP Short Sleeve Shirt for Women - OD Green 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-21017-M
    Now: $9.99
    Was: $14.95
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  • On Sale
    New - HKP Short Sleeve Tee Female - Black - HKP-21018-M
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    HKP Women's Shirt - Short Sleeve - Black

    HKP HK Parts

    Now: $9.95
    Was: $14.95
    HKP Short Sleeve Shirt for Women - Black 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-21018-M
    Now: $9.95
    Was: $14.95
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