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 - Michaels Machines HK USC/UMP 9mm Semi Auto Bolt Carrier - Incomplete - HKP-19871 HK USC, UMP Bolt Carrier - Semi Auto - 9mm - Incomplete

    HK USC, UMP Bolt Carrier - Semi Auto - 9mm - Incomplete

    Michaels Machines

    $499.95
    HK UMP 9mm - Semi-Auto Bolt Stripped The semi-auto bolt is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Features: Tungsten filled Heat treated Parkerized & polished Marked 9X19mm just...
    HKP-19871
    $499.95
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  • New - H&K HK 416, 417 Buttstock Release Lever - RAL 7008 - HKP-19527 HK416, HK417 Stock Release Lever - RAL7008
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    HK416, HK417 Stock Release Lever - RAL7008

    $21.95
    Stock Release Lever - RAL 7008 - HK 416 & 417
    HKP-19527
    $21.95
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    $21.95
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  • New - H&K HK MR762/417 Handguard Grooved Pin - HKP-16822
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    HK417, MR762 Handguard Pin - Grooved

    H&K Heckler & Koch

    $11.95
    H&K HK MR762, 417 Handguard Grooved Pin   Hechler & Koch grooved pin for HK MR762 and HK 417 handguards.   Compatible With: HK MR762 HK417
    HKP-16822
    $11.95
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  • New - HK G41 Firing Pin Spring - HKP-16060
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    HK G41 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    HK G41 Firing Pin Spring Compatible With: HK G41
    HKP-16060
    $9.95
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  • New - H&K HK MR556/416 Brass Catcher - HKP-18046
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    HK416, MR556, HK417, MR762 Brass Catcher

    H&K Heckler & Koch

    $595.95
    HK 416, MR556 Brass Catcher The HK factory German brass catcher attaches quickly to firearms featuring a factory spec. Picatinny tri or quad rail.  Designed specifically for HK firearms with factory spec Picatinny quad rail handguards but will also...
    HKP-18046
    $595.95
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    New - H&K HK MR556/416 Standard Length Quad Rail - Black - HKP-02546

    HK416, MR556 Handguard - Standard Length - Quad Rail

    H&K Heckler & Koch

    $0.00
    H&K HK MR556/416 Standard Length Quad Rail HK German HK416 & MR556 quad rail complete that includes HK 416/MR556 Handguard Screw. This handguard can also be installed on the CR556 models as well. Compatible With: HK MR556 HK 416 HK CR556
    HKP-02546
    $0.00
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  • New - HKP HK MR556/416 Titanium Firing Pin Catch - HKP-17767
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    HK416, MR556 Firing Pin Catch - Titanium

    HKP HK Parts

    $49.95
    HK MR556 & HK416 Firing Pin - Titanium Made in the US from grade 6 Titanium. Get the lightest, strongest firing pin available for your HK firearm. Compatible With: HK MR556 HK416 HK M27
    HKP-17767
    $49.95
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  • New - H&K 10/30 Round HK G36 Magazine Floor Plate - Black - HKP-16381 HK G36 Magazine Floorplate 10 or 30 Round
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    HK G36 Magazine Floorplate 10 or 30 Round

    H&K Heckler & Koch

    $11.95
    H&K 10/30 Round HK G36 Magazine Floor Plate New factory German G36 30 round and 10 round magazine floor plate.
    HKP-16381
    $11.95
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  • New - H&K G36 (5.56/.223) 2 Round Burst Disconnector Axle - HKP-16350
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    HK G36 Disconnector Axle - 2 Round Burst

    H&K Heckler & Koch

    $10.95
    H&K G36 (5.56/.223) 2 Round Burst Disconnector Axle
    HKP-16350
    $10.95
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  • Used - H&K UMP (.45 ACP) Parts Kit - Extended Demilled Rear Receiver Section - Used - HKP-00589 HK UMP Parts Kit - .45 ACP - De-Milled - Used
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    HK UMP Parts Kit - .45 ACP - De-Milled - Used

    H&K Heckler & Koch

    $3,429.95
    HK German UMP .45 Parts Kit- Used PD Trade-In UMP .45 German parts kit complete with all the factory HK parts minus the receiver. PD trade-ins are in good shape. Click this link to complete your build with an S5 Tactical receiver. Each UMP .45 Parts Kit...
    HKP-00589
    $3,429.95
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    New - MM HK UMP 9mm Conversion Kit - 16 inch Barrel - HKP-02284 HK UMP Caliber Conversion to 9mm Kit - 16.5" Barrel - 30 Round Magazine

    HK UMP Caliber Conversion to 9mm Kit - 16.5" Barrel - 30 Round Magazine

    Michaels Machines

    $889.95
    HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the total swap...
    HKP-02284
    $889.95
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  • New - HKP HK 21 (7.62x51/.308) Feed Mechanism Latch Lever - HKP-00235 HK21 Feed Mechanism Latch Lever
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    HK21 Feed Mechanism Latch Lever

    Michaels Machines

    $69.95
    HKP HK21 Feed Mechanism Latch Lever - 7.62x51 / .308 Replacement feed mechanism latch lever for HK21 belt-fed platforms chambered in 7.62x51 and .308. Designed to interface with the feed assembly and support proper operation of the HK21 system...
    HKP-00235
    $69.95
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