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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HK SL8, G36, Sight Rail w/ Flip Up Sights
H&K Heckler & Koch
$598.95HK Sl8, G36 Aluminum Sight Rail With Front & Rear Flip Up Sights New production German HK HK Sl8, G36 picatinny rail with flip up front and rear sights. The latest production rail option from HK. All metal and built to take a lifetime of use and...HKP-17718$598.95 -
HK33, HK33K, HK93 Bolt Carrier - Full Auto - US
RCM
$359.95HK 93, 33 & 33K Full Auto Bolt Carrier - US - RCM Brand new US RCM manufactured new style HK33/93, 33K factory bolt carrier. The finest HK bolt carrier ever made with the latest & greatest German inspired improvements and updates. Ideal for...HKP-20537$359.95 -
HK MP5K Slimline Handguard
H&K Heckler & Koch
$49.95H&K HK MP5K Slimline Forearm Used German military slimline forearm refinished in a black cerakote . Cut down to fit the MP5k. These are rare items only offered here at HK Parts. Each item is in good to excellent shape. Compatible With: MP5K,...HKP-20275$49.95 -
HK MR762, G28 Free Floating Rail System - RAL8000
H&K Heckler & Koch
$999.95HK MR762, 417 Extended Free Floating Rail System - RAL 8000 - Tan New Heckler & Koch MR762, HK 417, & G28 extended forearm with flip up front sight & suppressor window cutout. Optimized design to mitigate the heat emissions for long range...HKP-17707$999.95 -
HK417, MR762, G28 Ejection Cover Axle Spring
H&K Heckler & Koch
$9.95H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...HKP-16753$9.95 -
On Sale
HK MR556, MR762 H-Key 14 Rail Segment
HKP HK Parts
Now: $17.95Was: $39.95HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment 14 slot rail segment for the new "HKey" style forearms. This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models...HKP-17846Now: $17.95Was: $39.95 -
HK416, MR556 Ejector For Bolt Head
H&K Heckler & Koch
$23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: HK MR556 HK 416HKP-00037$23.95 -
HK416, MR556 Charging Handle Release Latch
H&K Heckler & Koch
$39.95H&K HK MR556/416 Charging Handle Release Latch Perfect replacement item for the MR556 & HK 416 charging handle. New HK German manufacture. These can become chewed up and damaged with a hard drop or with heavy use. This is a great item to keep on...HKP-16553$39.95 -
HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug - US
HKP HK Parts
$299.95HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug HKP UMP 3-lug 1/2x28 threaded barrel. This is the perfect replacement for a worn out barrel or as a spare. With the 3-lug attachment point you can attach any suppressor or flash hider that is in-spec or you...HKP-18639$299.95 -
HK91, G3 Bolt Carrier - Full Auto - Tungsten - Made by EBO Under HK Contract
EBO
$199.95Used HK Contract Greek (EBO) F/A Date Coded Tungsten Filled Bolt Carrier. HK German G3 F/A date coded bolt carrier with the tungsten inserts. The tungsten inserts and upgrade is ideal for those that are having bolt bounce issues or want the smoothest...HKP-16572$199.95 -
HK91, G3, PTR Magazine - 5 Round
HKP HK Parts
$79.95HKP HK 91/G3/MSG90 5 Round Magazine - Steel - (7.62x51/.308) 5 Round German Steel 308 Magazine With US Made Floorplate (Counts as 1 US made Part for 922R compliance) For HK Rifles.This magazine is made by Heckler and Koch & converted to five rounds...HKP-16250-M$79.95 -
HK MP5, HK94 Vented Wide Handguard - Vertical
HKP HK Parts
$44.95HKP MP5 & HK94 Vented Wide Forearm - Vertical New US manufactured (922r compliant) HK MP5 & HK94 vented wide handguard with the 90 degree vents. This style of venting allows better handling and superior barrel cooling abilities. Available...HKP-16856$44.95