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 Ambidextrous Selector Lever - Right Side
H&K Heckler & Koch
Now: $80.95Was: $89.95H&K Ambidextrous Selector Lever - Right Side This is the right-side selector of the ambidextrous trigger packs. This part will only work on ambidextrous style or pictogram style housing and trigger packs. New HK German manufactured. Compatible...Now: $80.95Was: $89.95 -
On Sale
HK416, MR556 Rear Diopter Sight Assembly - 10.5"
H&K Heckler & Koch
Now: $170.06Was: $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...Now: $170.06Was: $188.95 -
On Sale
HK93, HK53, HK33 - Retractable Stock - A3
MKE
Now: $359.95Was: $399.95MKE HK93, HK33, HK53 & Z43 - A3 Stock - Cerakote A3 retractable stock for the HK33/53/93 built by MKE on HK tooling. These MKE stocks are your best option for a new production stock now that HK has discontinued them. Compatible...Now: $359.95Was: $399.95 -
On Sale
HK MP5, HK94 Cocking Tube Support - Steel
HKP HK Parts
Now: $39.96Was: $49.95MP5 All Steel Cocking Tube Support 9mm - USA: Made entirely from ordnance grade stainless steel from the factory HK German print & specs. An HK German quality part at the best price. Each MP5 9mm cocking tube support will include the detent and...Now: $39.96Was: $49.95 -
On Sale
HK MP5 Trunnion - 9mm
RCM
Now: $58.46Was: $64.95RCM MP5 9mm Trunnion US made to exact factory HK specifications and machined completely from ordnance grade steel and heat treated to factory specs. Compatible With: MP5, 94 MP5K SP89 Clones or other custom buildsNow: $58.46Was: $64.95 -
On Sale
HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel
Botach Tactical
Now: $62.96Was: $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 &...Now: $62.96Was: $69.95 -
Out Of StockOn Sale
MI HK MP5K, HK SP89 Top Rail
MI Midwest Industries
Now: $116.95Was: $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...Now: $116.95Was: $129.95 -
On Sale
HK 90 Series Hammer - MP5/G3/93/53/33 - German - Used
H&K Heckler & Koch
Now: $26.95Was: $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...Now: $26.95Was: $29.95 -
On Sale
HK SL8, G36 Extended Mag Release
H&K Heckler & Koch
Now: $17.95Was: $19.95HK SL8 & G36 Oversized Extended Mag Release New HK German SL8, G36, HK243 extended magazine release. A must have upgrade for your HK SL8, Sl8-G36 conversion or G36 firearm. The HK extended magazine release is a drop in replacement and requires zero...Now: $17.95Was: $19.95 -
On Sale
HK Spring - Rear Sight - German
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K German Rear Sight Spring HK German rear sight spring for rear diopter sights.Now: $4.46Was: $4.95 -
On Sale
HK Universal Hammer Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95New HK German Rifle Hammer Spring For All.308/.223 Semi & Full Auto Trigger Packs The 308/556 hammer spring is a popular upgrade to replace the hammer spring in 9mm and clones that have light primer hits. This is the factory-correct 25 lb. weight for...Now: $8.96Was: $9.95 -
On Sale
HK UMP, USC Stock Axle Pin
H&K Heckler & Koch
Now: $27.86Was: $30.95HK German UMP Rear Stock Axle Pin This is the HK factory German stock pin that allows you to attach the stock to either the factory receiver of a UMP or for those that are doing the USC to UMP conversion. This is required to attach the stock to the...Now: $27.86Was: $30.95