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 - RCM MP5 & HK34 9mm Barrel - Threaded 1/2x28 - HKP-17762 HK MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28
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    HK MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28

    RCM

    $204.95
    RCM MP5, HK34, HK94 Barrel - 9mm - 12.7"- Threaded 1/2x28   Each barrel is hand-selected from the finest cold hammer forged (CHF) 41V45 steel blanks, expertly profiled and chambered in the desirable 16 flute chamber profile. Finished with a...
    HKP-17762
    $204.95
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  • New - HKP ACE Adapter for HK MP5, 93, 33 - HKP-18504 HK MP5, HK33, HK93 Stock or Brace Adapter - ACE Style
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    HK MP5, HK33, HK93 Stock or Brace Adapter - ACE Style

    HKP HK Parts

    $99.95
    ACE Adapter for HK MP5 and HK 93 Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter available period...
    HKP-18504
    $99.95
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  • HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract
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    HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract

    Other

    $14.95
    Turkish Contract Bayonet Adapter Replacement Kit for HK91, HK G3, HK33, HK93 Turkish contract replacement hardware kit for early-style bayonet adapters. Intended for use with pre-ban pattern adapters on compatible HK roller-delayed rifle platforms...
    HKP-22518
    $14.95
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    $14.95
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  • HK CC9 Magazine Spring - 12 Round
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    HK CC9 Magazine Spring - 12 Round

    H&K Heckler & Koch

    $9.95
    Heckler and Koch 12-Round Magazine Spring for HK CC9 Genuine 12-round HK CC9 steel magazine spring. Compatible With: HK CC9
    HKP-22509
    $9.95
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  • HK UMP, USC Recoil Rod Spring - Enhanced
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    HK UMP, USC Recoil Rod Spring - Enhanced

    HKP HK Parts

    $11.95
    HKP Enhanced Recoil Rod Spring for HK UMP, USC Upgrade or replace your UMP recoil system with HKP's enhanced heavy recoil rod spring from HK Parts. This spring is approximately 10 percent stronger than a standard recoil spring, making it ideal for...
    HKP-22507
    $11.95
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  • HK MP5, HK94 Rivet for  Sling  clip - Pack of 3 HK MP5, HK94 Rivet for  Sling  clip - Pack of 3
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    HK MP5, HK94 Rivet for Sling clip - Pack of 3

    LSC

    $3.95
    LSC HK MP5, HK94 Rivet for Sling Clip and Case Deflector - Pack of 3 Each case deflector, US or German-made, will require two rivets to attach the case deflector to the receiver or flat. You will need two of these for installing one case deflector...
    HKP-99400
    $3.95
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  • WOOX M-LOK Rail Covers - Checkered - GEN2 WOOX M-LOK Rail Covers - Checkered - GEN2
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    WOOX M-LOK Rail Covers - Checkered - GEN2

    WOOX

    $38.95 - $48.95
    WOOX Checkered GEN2 HK Rifle, SMG M-LOK Rail Covers The checkered GEN2 M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection. The Checkered texture uses black nylon bushings and is...
    HKP-22463-M
    $38.95 - $48.95
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  • WOOX M-LOK Rail Covers - Teardrop - GEN2 WOOX M-LOK Rail Covers - Teardrop - GEN2
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    WOOX M-LOK Rail Covers - Teardrop - GEN2

    WOOX

    $58.95 - $78.95
    WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...
    HKP-22462-M
    $58.95 - $78.95
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  • HK MP5 Case Deflector - 9mm, .40 S&W Receivers HK MP5 Case Deflector - 9mm, .40 S&W Receivers
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    HK MP5 Case Deflector - 9mm, .40 S&W Receivers

    HKP HK Parts

    $24.95
    HKP HK MP5 Case Deflector - 9mm, .40 Receivers US-made steel case deflector for HK MP5 and MP5K receivers in 9mm and .40 S&W. Installs on the ejection-port flat, rivet or weld, to redirect brass and support reliable extraction on MP5 and MP5K style...
    HKP-22383
    $24.95
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  • HK G3 Complete Parkerized Rear Receiver Section - SURPLUS FMP HK CONTRACT HKP-22375 HK G3 Complete Parkerized Rear Receiver Section - SURPLUS FMP HK CONTRACT HKP-22375
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    HK FMP G3 Rear Receiver Section - SURPLUS

    FMP HK CONTRACT

    $24.95
    H&K G3 Complete Parkerized Rear Receiver Section without Rear Sight - SURPLUS UNIT CONDITION WILL VARY  Steel rear receiver section manufactured by FMP on HK tooling. Does not include the rear sight.  Compatible with: HK G3, HK91 In-spec...
    HKP-22375
    $24.95
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  • PTR PDW MOE PR Stock Magpul HKP-22347 HK51, PTR PDW MOE PR Stock
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    HK51, PTR PDW MOE PR Stock

    Magpul

    $249.95
    Magpul HK51, PTR PDW MOE PR Stock - Black Designed for the PTR PDW platform, this adapter ensures a precise fit and secure lockup for stock installation. Features: Secure lockup for repeatable seating and zero retention High-strength aluminum...
    HKP-22347
    $249.95
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  • HK MP5 Extended Safety Selector Lever - Used H&K Heckler & Koch HKP-22327-USED HK MP5 Extended Safety Selector Lever - Used H&K Heckler & Koch HKP-22327-USED
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    HK MP5 Selector Lever Extension - Used

    H&K Heckler & Koch

    $24.95
    H&K MP5 Safety Selector Lever Extension - Used Used factory original HK MP5 safety selector lever extension in good condition.  This part affixes to the safety selector lever to extend the safety lever for easier actuation. This is a used part,...
    HKP-99317
    $24.95
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