USA

H&K VP9SK 9mm Dimpled Tactical Barrel - Threaded 13.5x1   Each barrel is meticulously crafted from ordnance grade steel, heat-treated, and finished inside and out with an ultra-desirable...

HK VP9SK 9mm Tactical Barrel - Threaded 1/2x28 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished inside and out with a highly desirable nitride coating. The...

SL8 & G36 Extended Bolt Hold Open Lever New SL8, G36, HK243 bolt hold open lever. A must have upgrade for your HK SL8, Sl8-G36 conversion or G36 firearm. The bolt hold open lever is a drop in...

MP5 to MP5K Housing Conversion Service At HK Parts we are now offering our own HK trigger housing conversion service. No one does a better job with quicker turn around then we do. This conversion is...

HK Clipped & Pinned Service - Universal SP5/MP5 At HK Parts we offer our own HK trigger housing clip & pin services. No one does a better job with quicker turn around then we do. We will clip...

HK 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...

25 Round HK UMP 45 LWRC SMG 45 Magazine - FDE Made from advanced polymer material with steel feed lips, just like the German UMP 45 magazine, at a fraction of the cost. Compatible With: HK UMP ...

Trijicon RMR/SRO 45° Rail Offset Adapter Perfect for that situation where you need the versatility of a magnified optic paired with a Trijicon RMR or SRO red dot sight in close quarters. This...

HK MP5, 94 UMP Style Folding Stock With HK Parts Stock Adapter New US UMP style folding stock assembled with our own HK Parts stock adapter. Our HK Parts stock adapter was made from a solid billet of...

HK UMP .45 Magazine Follower - USA New UMP .45 magazine follower for all HK UMP .45 magazines. Compatible With: UMP 45 magazines both US or German

HK MP5K Side Reinforcement Tabs.

HK MP5 .22LR - GSG9 UMP Style Folding Stock w/ HK Parts Stock Adapter New complete MP5 .22lr folding stock with GSG9 UMP style stock section. Each stock uses a UMP style stock for a longer length of...