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 - HK Parts MP5SD 9mm Barrel - Threaded 18x1 - HKP-17755 HK MP5SD Barrel - 9mm - Threaded 18x1

    HK MP5SD Barrel - 9mm - Threaded 18x1

    HKP HK Parts

    $169.95
    HKP MP5SD 9mm Barrel - Threaded 18x1 Made in the USA from 416 stainless steel, this high-quality barrel undergoes the highly desirable nitride process for a super hard, durable finish. Precision milled to the latest specifications, it features...
    HKP-17755
    $169.95
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  • HK MP5K Apparel - Hats, Patches, and Shirts - V2 HK MP5K Apparel - Hats, Patches, and Shirts - V2
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    HK MP5K Apparel - Hats, Patches, and Shirts - V2

    HKP HK Parts

    $0.00
    HKP HK MP5K Apparel and Patch Collection - Version 2 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22455-M
    $0.00
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  • Picatinny Optic Mount Shield - Aimpoint T2, H2 - S.W.O.R.D.S Picatinny Optic Mount Shield - Aimpoint T2, H2 - S.W.O.R.D.S
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    Picatinny Optic Mount Shield - Aimpoint T2, H2 - S.W.O.R.D.S

    Frost Defense

    $239.95
    Aimpoint T-2, H-2 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T2/H2 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...
    HKP-22338-M
    $239.95
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  • New - HKP HK MP5 SD Handguard Conversion - M-LOK - HKP-22200 HK MP5 Handguard Conversion - SD Style - MLOK
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    HK MP5 Handguard Conversion - SD Style - MLOK

    HKP HK Parts

    $324.95
    HKP HK MP5 SD Handguard Conversion - M-LOK Transform your standard MP5 into the classic SD-style with the HKP MP5 SD handguard conversion. This drop-in handguard is designed solely for aesthetics, providing your MP5 with the distinctive suppressed SD...
    HKP-22200
    $324.95
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  • New - H&K Hammer and Pressure Shank Pin - 90 Series - HKP-21854
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    HK Hammer and Pressure Shank Pin - 90 Series

    H&K Heckler & Koch

    $3.95
    H&K Hammer and Pressure Shank Pin - 90 Series For pinned-style hammer and shanks, this pin securely holds the two components together. This original H&K production part has never been installed. Made from correct German-spec steel to meet exact...
    HKP-21854
    $3.95
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  • On Sale
    New - HKP HK UMP/USC 4 Piece M-Lok Set - Anodized - HKP-21663-M HK UMP, USC 4 Piece M-Lok Set - Anodized
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    HK UMP, USC 4 Piece M-Lok Set - Anodized

    HKP HK Parts

    Now: $99.95
    Was: $149.95
    HKP HK UMP/USC 4 Piece M-Lok Set - Anodized  Upgrade your UMP and USC with the HK Parts 4-piece M-Lok set, designed to eliminate the hassle of snagging and shredding your knuckles on Picatinny rails. This exceptional set significantly expands the...
    HKP-21663-M
    Now: $99.95
    Was: $149.95
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  • Out Of Stock
    Used - H&K MP5 , HK94 Factory A3 Stock - Used - HKP-21644 HK MP5 , HK94 Factory A3 Stock - Used

    HK MP5 , HK94 Factory A3 Stock - Used

    H&K Heckler & Koch

    $739.95
    H&K MP5 & HK94 Factory A3 Stock - Used The original Navy-style German HK MP5 A3 stock is a rare find as it's no longer in production and has been replaced by the MP5 F-style stock. We are offering the sought-after second-generation MP5 A3...
    HKP-21644
    $739.95
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  • New - B&T Unigrip QD with Bipod - HKP-21387-M B&T Unigrip QD with Bipod
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    B&T Unigrip QD with Bipod

    B&T Brugger & Thomet

    $198.95
    B&T Unigrip QD with Bipod This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Polymer/alloy Heat deflection temperature:...
    HKP-21387-M
    $198.95
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  • New - RCM HK G3 & M61 (7.62x51/.308) Barrel - Threaded 15x1 RH - HKP-21353 HK G3, M61 Barrel - 7.62 - 17.7" - Threaded 15x1 RH
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    HK G3, M61 Barrel - 7.62 - 17.7" - Threaded 15x1 RH

    RCM

    $274.95
    RCM HK G3 & M61 (7.62x51/.308) Barrel - Threaded 15x1 RH Brand New Barrel for the Pre-G3 HK M61. The M61 was produced by H&K in Germany and has some aesthetic features that the final G3 rifles did not incorporate. A true piece of history can be...
    HKP-21353
    $274.95
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  • On Sale
    New - TPM Tikka T3 Bolt Handle Upgrade - HKP-20901 Tikka T3 Bolt Handle - Upgrade
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    Tikka T3 Bolt Handle - Upgrade

    Tactical Precision MFG

    Now: $34.95
    Was: $69.99
    TPM Tikka T3 Bolt Handle Upgrade Designed for exact Tikka specs. Tikka T3 upgraded bolt handle is 17-4 stainless steel for optimal strength and durability. This upgraded bolt handle was designed with a 20-degree angle to help improve bolt manipulation...
    HKP-20901
    Now: $34.95
    Was: $69.99
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  • Out Of Stock
    Used - H&K HK UMP .40 - 30 Round Magazine - Used - HKP-20816 HK UMP .40 - 30 Round Magazine - Used

    HK UMP .40 - 30 Round Magazine - Used

    H&K Heckler & Koch

    $49.95
    30 Round Magazine – Used – UMP .40 S/W This magazine will fit all HK UMP .40 caliber UMP’s as well as the USC-UMP .40 caliber conversions. Used factory HK magazine. Compatible With: HK UMP .40 HK USC-UMP conversions LWRC SMG.40
    HKP-20816
    $49.95
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  • Out Of Stock
    Used - KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204 Used - KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204

    HK417, MR762, G28 Magazine Release - Ambidextrous

    KDG Kinetic Development Group

    $169.95
    Magazine Release - Ambi - HK MR762, 417, G28 The HK 762 Ambi (Ambidextrous) Magazine Release. This is the first ambidextrous magazine release for the HK 417 variant rifles.  The mag release is a lever instead of a button; where the release has been...
    HKP-19204
    $169.95
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