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 Standard Roller 8.00mm - Used
H&K Heckler & Koch
$7.958.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt Head HK spec unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. The best roller on the market...HKP-19374$7.95 -
HK91 Polymer To Metal Trigger Group Conversion Kit
HKP HK Parts
$225.95HK 91/PTR 91 Polymer To Metal Trigger Group Conversion Kit. This is everything you will need to convert the lower trigger group on your HK 91 from polymer to metal housing with contoured grip. Just use your existing trigger pack to complete the...HKP-17362$225.95 -
HK MP5, MP5F Recoil Rod Guide Ring - Enhanced
HKP HK Parts
$3.95HKP MP5F & MP5 40,10 Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced New Enhanced material for greater longevity and durability Our US made recoil rod guides are the made from the strongest most durable material available much better than...HKP-17835$3.95 -
HK416, MR556 Sling Loop Backplate - Ambidextrous
H&K Heckler & Koch
$34.95H&K HK MR556/416 Sling Loop Backplate - Ambidextrous Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubesHKP-17151$34.95 -
HK Binary Selector Set - Ambi Housing
HKP HK Parts
$79.95Aluminum HK Selector Lever Set for BFSIII HK Binary Trigger Pack - Ambi pictogram housings Our new Aluminum Selector Lever Set was modeled after the HK Ambi Style Selector Lever. Designed to work flawlessly with Franklin Armory Trigger Pack...HKP-19816$79.95 -
Out Of Stock
HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel
Botach Tactical
$69.95Botach Battle Steel HK Ultra-Low Profile Integrated Mounting Platforms for the Trijicon MRO Ultra-low-profile mount for HK MP5/HK33/HK53 firearms. Features a lower 1/3 cowitness for the Trijicon MRO sights. Compatible With: HK MP5 &...HKP-19530$69.95 -
Out Of Stock
HK416, MR556 Rear Diopter Sight Assembly - 10.5"
H&K Heckler & Koch
$188.95H&K HK MR556/416 10.5" Rear Diopter Sight Assembly This is the proper rear sight for use on all HK 416 10.5 uppers and firearms. This is also a great sight alternative for those who need a lower sight setup for the AR, XCR, etc. To be used in...HKP-01109$188.95 -
Sling Pin O-Ring - Ambi
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
HK MP5, HK90 Series Hammer - Full Auto - Used
H&K Heckler & Koch
$29.95Hammer, Full Auto HK 90 Series Trigger Packs - German HK - Used German HK Hammer- used, surplus in VG-EXC shape and in perfect working order. This hammer is the hammer that is most commonly used in semi auto trigger packs as the secondary sear catch is...HKP-21442$29.95 -
HK MP5K, HK SP89 Top Rail
MI Midwest Industries
$129.95MI HK MP5K, HK SP89 Top Rail Midwest Industries picatinny and M-lok top rail for MP5, HK94 style weapons and clones. An amazing profile option for your MP5 style weapon. Offers a combination of strength, adaptability and extreme lightweight features...HKP-19113$129.95 -
HK91, G3 Extended Rifle Length Handguard - M-LOK
AIM
$129.95HK G3 EXTENDED RIFLE LENGTH HANDGUARD- M-LOK The most innovative and modular HK variant handguard on the market, our M-LOK HK forend can be used with all modern and traditional shooting techniques. CNC machined aluminum construction makes for a solid,...HKP-18173$129.95 -
Grip Cap Spring - HK Navy Style
H&K Heckler & Koch
$4.95H&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...HKP-16408$4.95