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 UMP, USC Top Rail - Extended - Optics
HKP HK Parts
$59.95HKP HK UMP & HK USC Extended Top Rail For Optics Nearly an 1" longer than the standard length top rail for mounting any Picatinny mount optic. Made in the USA from 6061 aluminum and hard coat anodize in a beutiful black finish.HKP-21048$59.95 -
On Sale
HK USC , UMP Top Rail
Other
Now: $99.95Was: $149.95Top Rail - HK USC / UMP TommyBuilt anodized aluminum high rise top rail. Includes mounting hardware. Compatible With: HK UMP HK USC TMP UMP cloneHKP-20744Now: $99.95Was: $149.95 -
HK MP5, MP5K Flash Hider - 3-Lug - Titanium - 9mm
HKP HK Parts
$139.95HKP MP5 9mm Titanium Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found...HKP-20223$139.95 -
HK SL8 Complete Rear Sight
H&K Heckler & Koch
$99.95H&K HK SL8 Complete Rear Sight This item can be used on other applications as well as the SL8, G36 models.HKP-16354$99.95 -
HK G36 Bolt Group - Semi-Auto - Complete
GSG9
$799.95GSG9 - HK G36 Semi-Auto Bolt Group Compatible With: HK G36 HK G36K HK G36C This will not work with a HK SL8.HKP-18944$799.95 -
HK MP5 Magazine Spring - .22LR - 10 Round
HKP HK Parts
$3.95HKP 10 Round MP5 .22LR Magazine Spring New fresh production mag spring for your HK MP5 .22 magazine. Please note: This spring can also be used to convert the 10 round magazine to a 10 round magazine. It has come to our attention that Walther has made...HKP-20297$3.95 -
HK MP7 Retractable Buttstock
H&K Heckler & Koch
$199.95H&K HK MP7 Retractable Stock New Rare HK MP7 - 1 Position - Retractable Buttstock Compatible With: All MP7A1 and MP7A2 FirearmsHKP-18552$199.95 -
Out Of Stock
HK33, HK53, HK93 Bolt Carrier - Full Auto - Buffered Style - Used
H&K Heckler & Koch
$345.95HK German production HK German HK33, 33K, 93 Full Auto Bolt Carrier Used Buffered Style Hard to find, vintage HK German buffered style F/A bolt carrier. Perfect for a spare or to upgrade your clone or conversion to the factory correct latest style bolt...HKP-16455$345.95 -
Out Of Stock
HK MP5 Barrel - 9mm - Threaded 1/2x28 with 3 Lug - Navy - US
HKP HK Parts
$179.95HKP MP5 9mm Navy Barrel - Threaded 1/2x28 - 3-Lug High quality, US-made MP5-N barrel. Built to last and finished in resilient nitride. Precision milled to the latest specs with the factory correct and updated 16 flutes in the chamber. Three lug &...HKP-17926$179.95 -
HK416 Compensator - PWS FSC556 Tactical
PWS Primary Weapon Systems
$89.95FSC556 Tactical Compensator (Muzzle Brake) Compensator The PWS FSC556 has the very best compensation and decrease in muzzle rise. Combine that with enough flash suppression to keep the flash out of your optics and line of sight. Not to mention...HKP-01647$89.95 -
HK MP5, SP5 ACR Folding Stock w/Adapter
F5 MFG
$229.95HK MP5/SP5 ACR Folding Stock w/Adapter Upgrade your MP5 platform with the F5-ACR Stock. Precision machined from 6061 billet aluminum for unmatched durability. Built for law enforcement, personal defense, and enthusiasts, this stock is lightweight,...HKP-22253-M$229.95 -
HK90 Trigger Spring- 3 Position - SEF and Navy
H&K Heckler & Koch
$9.95H&K HK SEF & Navy 3 Position Trigger Spring Elevate your HK 90 series performance with a factory-fresh trigger spring, designed for both semi and full-auto models. These are an essential upgrade for any 90 series owner, ensuring optimal...HKP-22178$9.95