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 3 Position Ambidextrous Selector Lever - BURST ONLY - HKP-01294 HK MP5, HK94 Selector Lever - Burst Ambi 3 position - Right Side ONLY - BURST ONLY
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    HK MP5, HK94 Selector Lever - Burst Ambi 3 position - Right Side ONLY - BURST ONLY

    H&K Heckler & Koch

    $99.47
    H&K 3 Position Ambidextrous Selector Lever - BURST ONLY This selector lever will convert any 4 position 0, 1, 2, F or 0, 1, 3, F trigger group to non-full auto BURST capability only, making the rotation 3 position instead of 4 position. This selector...
    HKP-01294
    $99.47
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    $99.47
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  • HK MP5, MP5K, SP5, SP5K Magazine Catch - 9mm HK MP5, MP5K, SP5, SP5K Magazine Catch - 9mm
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    HK MP5, MP5K, SP5, SP5K Magazine Catch - 9mm

    MKE

    $26.95
    HK Magazine Catch High-quality magazine catch manufactured by MKE, built to the latest style for improved reliability on factory and clone firearms. Machined from a single piece of steel for increased durability and smoother, more consistent mag...
    HKP-22549
    $26.95
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    $26.95
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  • HK MP5, AP5 Full Auto Sear Spring Spacer HK MP5, AP5 Full Auto Sear Spring Spacer
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    HK MP5, AP5 Full Auto Sear Spring Spacer

    MKE

    $1.95
    MKE Distance Sleeve for HK MP5 and AP5 Features: Precision-machined roller used in traditional roller-delayed trigger packs. Ensures perfect trigger geometry, smooth operation, and long-lasting reliability. Compatible With: HK MP5  Century...
    HKP-22477
    $1.95
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    $1.95
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  • WOOX Vertical Grip - M-LOK WOOX Vertical Grip - M-LOK
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    WOOX Vertical Grip - M-LOK

    WOOX

    $88.95
    WOOX HK Rifle, SMG M-LOK Vertical Grip This M-LOK vertical grip is a compact, ambidextrous foregrip made from American walnut with a reversible dual-wall design (vertical wall AND curved wall) to suit different grip styles. The checkered texture is...
    HKP-22464
    $88.95
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    $88.95
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  • On Sale
    MKE AP5/MP5 Slimline Handguard - GUNSMITH SPECIAL MKE HKP-22222-B MKE AP5/MP5 Slimline Handguard - GUNSMITH SPECIAL MKE HKP-22222-B
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    HK MP5, SP5 Handguard - Slimline Style - GUNSMITH SPECIAL

    HKP HK Parts

    Now: $15.98
    Was: $27.95
    MKE AP5/MP5 Slimline Handguard - GUNSMITH SPECIAL HOLES DO NOT ALIGN - NEEDS MODIFICATION THIS PART IS SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Please Note: Will require work before being functional. HKP...
    HKP-22222-B
    Now: $15.98
    Was: $27.95
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    Now: $15.98
    Was: $27.95
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  • Out Of Stock
    Compact Vertical Foregrip With Hand Stop - Picatinny Compact Vertical Foregrip With Hand Stop - Picatinny

    Compact Vertical Foregrip With Hand Stop - Picatinny

    JMK

    $98.95
    Compact Vertical Foregrip with Hand stop - Picatinny The JMK Vertical Foregrips are ideally suited for applications with restricted space. All grips are precision-machined from black walnut and complemented by a 6061 aircraft-grade aluminum handstop...
    HKP-22411-M
    $98.95
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  • HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED
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    HK91, G3 Backplate Assembly - Surplus

    FMP HK CONTRACT

    $14.95
    FMP HK91, G3 Backplate Assembly - Used/Surplus G3 surplus backplate assembly manufactured by FMP on HK tooling. Compatible With: HK G3, HK91
    HKP-22374
    $14.95
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    $14.95
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  • On Sale
    MKE HK MP5/AP5 Trigger Pack Housing MKE HKP-22259 MKE HK MP5/AP5 Trigger Pack Housing MKE HKP-22259
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    HK MP5, AP5 SEF Trigger Pack Housing - Semi Auto

    MKE

    Now: $84.95
    Was: $124.95
    MKE HK MP5/AP5 SEF Trigger Pack Housing MKE trigger pack Housing for semi-auto SEF trigger housing. OEM part for Century AP5.  Compatible With: HK MP5, MP5K with SEF housing Century Arms AP5, AP5-P with SEF housing
    HKP-22259
    Now: $84.95
    Was: $124.95
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    Now: $84.95
    Was: $124.95
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  • Used - H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - New Old Stock - HKP-22104 HK91, G3 A3 Retractable Buttstock - New Old Stock
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    HK91, G3 A3 Retractable Buttstock - New Old Stock

    H&K Heckler & Koch

    $1,345.95
    Heckler and Koch HK91, G3 A3 Retractable Stock - New Old Stock Genuine HK A3 retractable stock the HK91 or G3. These are original HK production units that have been out of manufacture for years, making remaining NOS increasingly rare. Compatible...
    HKP-22104
    $1,345.95
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    $1,345.95
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  • New - KCI 30 Round MP5 9mm Magazine - 10 Pack - Cerakoted - HKP-22066 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 10 Pack - Cerakoted
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 10 Pack - Cerakoted

    KCI

    $349.95
    KCI 30 Round MP5 9mm Magazine - 10 Pack Get reliable performance and a splash of style with the KCI 30 Round MP5 9mm Magazine 10-Pack. Cerakoted for durability, this pack includes two magazines in each of five distinct colors—perfect for quick...
    HKP-22066
    $349.95
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    $349.95
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  • Out Of Stock
    New - H&K HK416 Convex Buttstock w/Wrench - HKP-22025 HK416 Convex Buttstock - Wrench Included

    HK416 Convex Buttstock - Wrench Included

    H&K Heckler & Koch

    $114.95
    H&K HK416 Convex Buttstock w/Wrench Factory-original H&K buttstock with convex buttpad and included tool. Compatible with HK416 rifles using MIL-SPEC buffer tubes (not included). Features: Ergonomic cheek weld Twist-off rubber buttpad with two...
    HKP-22025
    $114.95
    Out Of Stock
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    $114.95
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  • New - H&K MR556/MR762 A4 Disconnector - HKP-21969
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    HK MR556, MR762 A4 Disconnector

    H&K Heckler & Koch

    $18.95
    H&K MR556/MR762 A4 Disconnector Factory H&K disconnector for use in MR556 A4 and MR762 A4 platforms.   Compatible With: HK MR556 A1/A4 HK MR762 A1/A4  
    HKP-21969
    $18.95
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    $18.95
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