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
HK Rear Sight Tool - Diopter Sights
HKP HK Parts
Now: $23.96Was: $29.95HK Diopter Rear Sight Tool - Military Contract Diopter sight tool is perfect for those that need to adjust all sizes of HK diopter type sights for the entire family of HK rifles including clones. A military contract over-run and mil-spec quality at the...Now: $23.96Was: $29.95 -
On Sale
HK Small Push Pin for Handguards and Lowers
USA
Now: $6.83Was: $7.59HK Small push pin - US Made All steel small push pin for use on the lower grip housing for a push pin style of lower housing. Black nitride finish which adds extra durability to the pin plus corrosion and abrasion resistance. The small push pin is also...Now: $6.83Was: $7.59 -
On Sale
HK MP5 Magazine Spring - 30 Round
H&K Heckler & Koch
Now: $6.25Was: $6.95HK MP5 30 Round Magazine Spring - German The MP5 30-round spring is a must-have replacement spring for all HK MP5 curved magazines. HK factory springs have been known to help cure worn, weak, or aftermarket magazine springs that do not feed well and...Now: $6.25Was: $6.95 -
On Sale
HK416, Colt M4 Spring Kit - .22LR - Match Trigger Upgrade
HKP HK Parts
Now: $13.99Was: $17.49HK 416 .22 & Colt M4 .22 Match Trigger Spring Kit - Set of 3 Enhanced Springs: The HKP match trigger spring kit delivers a lighter, smoother, and crisper trigger pull translating to on-target accuracy. Lower your pull weight by ~ 3lbs courtesy...Now: $13.99Was: $17.49 -
On Sale
HK Gen 1 Spring Upgrade - Roller Retainer Plate
HKP HK Parts
Now: $7.96Was: $9.95HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...Now: $7.96Was: $9.95 -
On Sale
HK MP5 Folding Brace
SB Tactical
Now: $89.95Was: $119.95SB Tactical Side Folding Brace for the HK MP5 and SP5 model SBT5A Features: Each brace comes assembled ready to install no assembly required Made in the USA B&T inspired design & styling The finest folding pistol brace option for your HK MP5...Now: $89.95Was: $119.95 -
On Sale
HK MP5, MP5K Optic Mount - Picatinny
MI Midwest Industries
Now: $72.86Was: $80.95MI Midwest Industries HK MP5, MP5K Mount - Scope - 9mm - Picatinny Rail Specifications: Easy no gunsmith install, all tools included Allows the user to mount an optic and a light or laser while retaining the factory handguard Patent-pending rock-solid...Now: $72.86Was: $80.95 -
On Sale
HK MP5, MP5K Extractor - 9mm
H&K Heckler & Koch
Now: $59.36Was: $65.95New HK German HK 9mm Extractor - Latest Generation This is the latest and greatest HK MP5 (newest F style version) German extractor. Each unit works with all HK MP5, HK94, HK MP5K, HK SP89, HK SP5K, or other 9mm clones. A great part to have as a spare or...Now: $59.36Was: $65.95 -
On Sale
HK MP5 .22LR Drum Magazine - 50 Round - Translucent
BDM Black Dog Machine
Now: $89.95Was: $99.95HK MP5 .22 50 Round Drum Magazine For The MP5-A5 & MP5-SD .22 Rifle Made in the USA by BDM exclusively for HK Parts. Using an existing drum model that is tried and true. Compatible With: HK, Walther, Umarex MP5 & MP5SD .22 rifles. MP5...Now: $89.95Was: $99.95 -
On Sale
HK MP5 Optic Mount - Holosun, RMR
HKP HK Parts
Now: $78.36Was: $97.95HKP HK Parts HK MP5 Mount - Optic - Holosun, RMR The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes the same style mounting system. With our 3 piece optic mount, it makes installation a breeze. No...Now: $78.36Was: $97.95 -
On Sale
HK Rifle Extractor Spring - FMP
H&K Heckler & Koch
Now: $3.14Was: $3.49HK Parts contracted with FMP to bring you this Rifle Extractor Spring Features: New FMP contract The extractor spring is the number one replaced item on HK firearms. Many HK gunsmiths recommend upgrading HK94, HK MP5 series HK's with a longer stronger...Now: $3.14Was: $3.49 -
HK91, G3 Ejector Lever - Used
H&K Heckler & Koch
$3.95.308 Ejector Lever - Used In perfect working order, pulled from surplus HK German G3's. Compatible With: HK G3 HK 91 PTR-91 HK 51$3.95