H&K Heckler & Koch

New HK German factory bolt head assembled and complete. No longer made and out of production get them while you still can. We have the last units available that HK has in stock. Brand new old stock...

German HK MP5 40, MP5 10mm Ejector Lever Get the ejector that is tried and true and the best upgrade you can make with your HK MP5 40 or 10mm. This is the finest and only ejector that will work...

H&K MP5 40/10 FBI Trigger Group (0,1) - SEMI - Clipped & Pinned As with all the ambidextrous trigger groups we offer, they are 100% factory German HK.

New HK German MP5 40 or MP5 10mm High Impulse Locking Piece Marked #25 This is the 60-degree locking piece that is used for high-impulse ammo, commonly found in +P or +P+ ammo. This locking piece is...

New HK German MP5 40 or MP5 10mm Low Impulse Locking Piece Marked #24 This is the factory 90-degree locking piece. Used for standard loads with low to average impulses. Compatible With: MP5 10 MP5...

New HK German MP5 40/10/.357 Magazine Clamp Fits all MP5 40/10 Magazines. Holds two magazines together for immediate access.

HK German MP5 40, MP5 10mm SEF Clipped & Pinned Semi-Auto Trigger Group - Complete Ready to install on your HK clone or a custom build.

HK German SEF Full Auto Trigger Pack Complete Factory HK German MP5 40 caliber full auto trigger pack is unmodified as it comes from HK. Our F/A trigger pack comes with a used factory German HK...

HK 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...

H&K MP5 40/10 SEF Navy Style Trigger Housing - Clipped & Pinned 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...

H&K MP5 40/10 Semi-Auto 4 Position (0,1,2,F) Trigger Housing - Clipped & Pinned This factory German trigger housing is designed for the MP5 40/10 with a 4 position pictogram (0,1,2,F). It...

HK German MP5 40/10 8mm Roller - Factory New Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note:...