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 MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
$189.95HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...HKP-22321$189.95 -
HK MP5K Handguard Conversion - SD Style
HKP HK Parts
$299.95HKP HK MP5K SD Handguard Conversion Transform your MP5K into a stunning MP5KSD with our revolutionary MP5K SD handguard conversion! This cutting-edge drop-in handguard is expertly designed to give your standard MP5K the iconic suppressed SD look...HKP-22201$299.95 -
HK416A5, MR556 Barrel - 5.56 / .223 - 11"
H&K Heckler & Koch
$424.95Heckler and Koch 11" Barrel for HK416A5, MR556 A4, MR556 A5 Factory German 11" HK416A5, MR556 barrel. Cold hammer-forged and built to HK’s standard for durability, accuracy, and service life. The 1:7 twist rate stabilizes a wide range of 5.56 NATO...HKP-21932$424.95 -
M-Lok Paraclip Sling Mount
Magpul
$19.95Magpul M-Lok Paraclip Sling Mount The M-LOK Paraclip Sling Mount is a steel clip-in sling mount for M-LOK compatible systems. It is constructed of high-grade, precision cast steel and has an extremely durable QPQ salt bath nitride finish. With a...HKP-21874$19.95 -
HK MP5K Optic Mount
HKP HK Parts
$97.95HKP HK MP5K Optic Scope Rail The HKP optic scope rail is designed to be welded to the top of the receiver to provide a secure Picatinny optic mount for your MP5K. Includes sight mount to retain the factory rear diopter sight. Compatible With: HK...HKP-21852$97.95 -
Out Of Stock
Picatinny Optic Mount - Holosun 510C, HM3X Combo
Holosun
$599.95Holosun 510C & HM3X Combo - Optic & Magnifier The HS510C is a versatile open reflex optic designed for long gun applications. HS510C is at home on carbines, PCCs, and shotguns due its durable design. HS510C features and aluminum housing...HKP-21657$599.95 -
HK G36, 36K NAR Mounting Rail
B&T Brugger & Thomet
$339.95B&T HK G36/G36K NAR Mounting Rail with Emergency Sight B&T NAR (picatinny compatible) mounting rail for HK G36/G36K with emergency sight. Compatible With: HK G36 HK G36KHKP-21529$339.95 -
HK UMP 5 Prong Flash Hider - 5/8x24
HKP HK Parts
$67.95HKP HK UMP 5 Prong Flash Hider - 5/8x24 Compatible With: HK UMPHKP-21523$67.95 -
HK SP5K Carrier - Semi Auto
RCM
$159.95RCM HK SP5K Semi Auto Carrier SP5K semi-auto carrier machined completely from billet ordnance steel. RCM US made SP5K carrier is made to the most updated and latest SP5K specs and more. Tungsten filled, heat treated, phosphate finish and all...HKP-20983$159.95 -
Out Of Stock
HK UMP .45 Semi-Auto Bolt Group - Complete
Michaels Machines
$749.95Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete MM’s UMP Tungsten filled UMP .45 bolt carrier complete. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK...HKP-20627$749.95 -
HK UMP .40 Semi-Auto Bolt Group - Complete
$649.95Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete MM’s UMP tungsten filled UMP .40 bolt carrier. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK internals which...HKP-20626$649.95 -
HK MP5 40/10 SEF Navy Style Housing - Clipped and Pinned - USED
H&K Heckler & Koch
$99.95HK MP5 40/10 SEF Navy Style Housing - Clipped & Pinned - USED A perfect upgrade for your HK MP5 40/10 build. This is the only SEF style housing available for the MP5 40/10 family of firearms. Each housing is professionally clipped and pinned...HKP-20618$99.95