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 MP5 9mm Flash Hider - 3-Lug - HKP-00082 H&K MP5 9mm Flash Hider - 3-Lug H&K Heckler & Koch HKP-00082

    HK MP5 Flash Hider - 9mm - 3 Lug

    H&K Heckler & Koch

    $157.95
    HK Heckler and Koch's 9mm Flash Hider - 3-Lug This part attaches to the end of any factory specification 9mm 3-lugged barrel. This flash hider does not require the use of threads as it attaches to the 3-lug tip, this is also a great addition for any of...
    HKP-00082
    $157.95
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    $157.95
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  • Out Of Stock
    Used - H&K 91/G3 (7.62x51/.308) Fixed Stock Complete - Black - Surplus - HKP-18936

    HK91, G3 Fixed Complete, Complete - Surplus

    H&K Heckler & Koch

    $129.95
    German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts to be a complete stock ready to use on your HK G3, 91,...
    HKP-18936
    $129.95
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  • New - PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 RH - CA/NY Compliant - HKP-17927 PTR Muzzle Brake - Threaded 5/8x24 RH - 5.56 / .223, 7.62x51 / .308 - CA/NY Compliant
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    PTR Muzzle Brake - Threaded 5/8x24 RH - 5.56 / .223, 7.62x51 / .308 - CA/NY Compliant

    PTR

    $24.95
    PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - NY/CA Compliant - Threaded 5/8x24 RH This new muzzle brake is made in the USA to exact HK standards. The best quality and price in the country. This muzzle device is a partially milled version (not...
    HKP-17927
    $24.95
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    $24.95
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  • New - HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH - HKP-17977 Thread Protector - 9mm - Enhanced - 1/2x28 RH
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    Thread Protector - 9mm - Enhanced - 1/2x28 RH

    HKP HK Parts

    $19.95 - $29.95
    HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH   This enhanced thread protector is crafted from stainless steel and designed for 1/2x28 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but...
    HKP-17977-M
    $19.95 - $29.95
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  • New - H&K MP5 40/10 Ejector Lever - HKP-00412 HK MP5 Ejector Lever - .40 S&W, 10mm
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    HK MP5 Ejector Lever - .40 S&W, 10mm

    H&K Heckler & Koch

    $38.74
    H&K Heckler and Koch German HK MP5 40, MP5 10mm Ejector Lever Get the ejector that is tried and true and the best upgrade you can make with your HK MP5 40 or 10mm. This is the finest and only ejector that will work properly for any length of time...
    HKP-00412
    $38.74
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  • Out Of Stock
    New - H&K HK MR556/416/416 A5 Slim Line Stock - RAL 8K - HKP-17602 HK416, HK416A5, MR556 Slim Line Buttstock - RAL8000

    HK416, HK416A5, MR556 Slim Line Buttstock - RAL8000

    H&K Heckler & Koch

    $94.95
    HK Heckler and Koch Slim Line Retractable Stock in RAL 8K for HK416, HK416 A5, and HK MR556 New from HK Germany the slim line retractable stock fits all commercial & mil-spec AR-15/M16 buffer tubes. Marked with the HK logo and issued on...
    HKP-17602
    $94.95
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  • New - Handguard Rail System Screw - HK416 - HKP-02680 HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
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    HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Handguard Locking Screw for your HK416, MR556, HK417, MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X" allowing the bolt head or HK sling hood tool to be used for...
    HKP-02680
    $29.95
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  • New - H&K 93/53/33 (5.56/.223) Firing Pin Spring - HKP-00193
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    HK33, HK53, HK93 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    New HK German 93, 33, & 53 .223/5.56 Firing Pin Spring. A must-have spare part as this is a high wear and replacement item.  Compatible With: HK93, 33, 53   V93/V53, C93, C53 Custom builds and clones
    HKP-00193
    $9.95
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  • New - H&K Ambidextrous Rear Stock Sling Pin - Large - HKP-00078
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    HK MP5, HK90 Series Buttstock Push Pin - Sling Hook - Ambi

    H&K Heckler & Koch

    $43.95
    H&K Ambidextrous Stock Sling Pin - Large The ambidextrous sling hook push pin replaces the stock push pin on the rear stock of the HK firearm, to enable the use of an HK sling for both left and right hand use. This part will replace and work on any...
    HKP-00078
    $43.95
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  • New - HK 91/G3 Magazine Follower - USA - HKP-18997 HK91, G3 Magazine Follower - USA
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    HK91, G3 Magazine Follower - USA

    $19.95
    Magazine Follower - USA - HK 91, G3, PTR USA made magazine follower for HK 91, G3 magazines. This follower is made in the USA and counts as one US made compliant part needed for builds and conversions for 922r compliance.
    HKP-18997
    $19.95
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  • On Sale
    New - AC-Unity HK PSG1 Style Sniper Pistol Grip - HKP-21628 HK G3 Pistol Grip - PSG1 Sniper Style
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    HK G3 Pistol Grip - PSG1 Sniper Style

    AC-Unity

    Now: $29.95
    Was: $39.95
    AC-Unity HK PSG1 Style Sniper Pistol Grip The new AC Unity Pistol Grip/Sniper Grip is a great upgrade if you want the PSG1 style grip frame for your HK firearm. The grip features an ambidextrous palm shelf for increased stability and weapon control...
    HKP-21628
    Now: $29.95
    Was: $39.95
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  • New - HKP HK MP5SD Barrel Port Brush Replacement Cartridge - HKP-21294 HK MP5SD Barrel Port Cleaning Brush Replacement Cartridge
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    HK MP5SD Barrel Port Cleaning Brush Replacement Cartridge

    HKP HK Parts

    $38.75
    HKP MP5SD Replacement Cartridge for Barrel Port Brush Replacement cartridge for HK MP5SD barrel port brush. Our replacement cartridge is compatible with factory HK barrel brush assemblies. Compatible With: HK MP5SD  
    HKP-21294
    $38.75
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