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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  • On Sale
    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

    Now: $8.96
    Was: $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
    Now: $8.96
    Was: $9.95
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  • On Sale
    New - H&K MP5 40/10 Ejector Lever - HKP-00412 HK MP5 40/10 Ejector Lever
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    HK MP5 40/10 Ejector Lever

    H&K Heckler & Koch

    Now: $34.87
    Was: $38.74
    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. Original factory German HK...
    Now: $34.87
    Was: $38.74
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  • On Sale
    New - H&K MP5, 94 Cocking Tube Support Spring - HKP-01104
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    HK MP5, HK94 Spring - Cocking Tube Support "

    H&K Heckler & Koch

    Now: $6.25
    Was: $6.95
    H&K MP5, 94 Cocking Tube Support Spring   A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to the cocking tube detent to enable the detent to lock into position when the...
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    Was: $6.95
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  • On Sale
    New - H&K Grip Cap Replacement Spring - HKP-16408 Grip Cap Spring - HK Navy Style
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    Grip Cap Spring - HK Navy Style

    H&K Heckler & Koch

    Now: $4.46
    Was: $4.95
    H&K Grip Cap Replacement Spring This is the replacement spring that is used on both the US and German made grip caps that can become damaged and broken with use. A great idea to have on hand as the spring will get bent and destroyed with use. We use...
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  • Out Of Stock
    On Sale
    New - HK MR556/MR762/416/HK417 Buffer Retainer Spring - HKP-20036

    HK416, MR556, HK417, MR762 Buffer Retainer Spring

    USA

    Now: $5.36
    Was: $5.95
    HK MR556/MR762/416/HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK MR556 HK 416 HK MR762 HK 417
    Now: $5.36
    Was: $5.95
    Out Of Stock
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  • Out Of Stock
    On Sale
    New - Handguard Rail System Screw - HK416 - HKP-02680 HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style

    HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style

    H&K Heckler & Koch

    Now: $23.36
    Was: $25.95
    HK416, MR556, HK417, MR762 - Handguard Locking Screw 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 installation or removal...
    Now: $23.36
    Was: $25.95
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  • On Sale
    New - HKP SP5K 9mm Drop In Paddle Mag Release Upgrade Kit - HKP-18192 HK SP5K Mag Release Upgrade Kit - 9mm - Drop In Paddle
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    HK SP5K Mag Release Upgrade Kit - 9mm - Drop In Paddle

    HKP HK Parts

    Now: $59.96
    Was: $74.95
    HK SP5K Anti-Rattle Roller Tipped "Paddle" Magazine Release Install Kit No modifications, no refinishing...complete drop-in kit included. New USA made busing for a drop-in install kit for the HK SP5K. This kit will allow any end-user to quickly,...
    Now: $59.96
    Was: $74.95
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  • On Sale
    New - H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring - HKP-00288
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    HK416, MR556, MR762, G36 Extractor Spring

    H&K Heckler & Koch

    Now: $8.05
    Was: $8.95
    H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring   A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK MR556 HK 416 HK MR762
    Now: $8.05
    Was: $8.95
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  • New - HKP UMP (.45 ACP) 25 Round Magazine Body - BODY ONLY - HKP-17020 HK UMP Magazine Body - .45 ACP - 25 Round
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    HK UMP Magazine Body - .45 ACP - 25 Round

    HKP HK Parts

    $34.95
    UMP 45 25 Round Magazine Body Only - USA Made New US made UMP .45 cal 25 Round Factory Mag Body. Each magazine body will fit all HK UMP factory firearms as well as the HK USC's that have been converted to accept UMP magazines. Each magazine is made in...
    $34.95
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  • On Sale
    Used - H&K 91/G3 (7.62x51/.308) Firing Pin - Used - HKP-16710
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    HK91, G3 Firing Pin - Used

    H&K Heckler & Koch

    Now: $6.25
    Was: $6.95
    H&K 91/G3 (7.62x51/.308) Firing Pin - Used Great for spares as this is a common wear item. Compatible With: HK G3 & HK 91, PTR or clone rifles
    Now: $6.25
    Was: $6.95
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  • On Sale
    New - MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED - HKP-17507-B
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    HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US - BLEMISHED

    USA

    Now: $4.46
    Was: $9.95
    MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED VARYING CONDITION. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART PRICE IS PER MAGAZINE Floorplate - SOLD INDIVIDUALLY. MP5,...
    Now: $4.46
    Was: $9.95
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  • On Sale
    New - HKP MP5 RMR Rear Sight Optic Mount - HKP-20506 HK MP5 Optic Mount - RMR - Rear Sight
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    HK MP5 Optic Mount - RMR - Rear Sight

    HKP HK Parts

    Now: $78.36
    Was: $97.95
    HK MP5- RMR Optic Mount: The  mounting solution to properly mount your RMR directly to the rear sight base on an MP5 or any other receiver that utilizes the same style rear sight base. The mount is the perfect height to co-witness your RMR with your...
    Now: $78.36
    Was: $97.95
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