HK21 / HK23 / HK11 Series

US Made HK21 Trunnion By Michael's Machine (MM) These are the finest US-made trunnions available.

HK23E Factory German Extractor Spring Rare and hard to find. This is a new HK German part.

New HK German Assault Grip This vertical grip mounts directly to the front shroud and can be mounted at several angles depending on the shooter's option. This item is no longer available or in production. Compatible With: HK 21e HK 23e HK 11 HK...

HK21E Partial Feed Mechanism. Comes complete minus the top shelf & pin as shown. New HK date coded complete & German. We have been told these are the last units available.

HK 21E, HK 23E Extractor Cylindrical Pin This part holds the extractor in place on the bolt head. A great spare to have on hand.

New HK21E, HK23E Factory German HK Ejector Lever Perfect for spare parts and for upgrading the MM guns and other clones with the factory HK ejector lever. Compatible With: HK 21E HK 23E HK 11E HK 13E MM23E, MM21E

HK German HK21E, HK23E Firing Pin Spring A must-have spare and replacement part. No longer in production. Compatible With: HK21E HK23E HK11E HK13 E HK21 HK MSG90 HK PSG1

HK21 Bolt Head Complete New HK contract FMP HK21 production bolt head complete. HK21 parts are no longer in production making these new parts exceptionally rare. All are date coded 1985 last year they were in production. HK21 Bolt Head Complete: Bolt...

HK21E & HK23E Factory Brass Catcher- New HK German HK21E and HK23E brass catcher with quick release system for taking the unit on and off in a snap.  Compatible With: HK23E HK21E MM23E & MM21E models

HK German 21 Firing Pin - Old Stock Compatible With: HK21

MM HK 23E (5.56/.223) Complete Feed Mechanism New US manufactured HK23E feed mechanism complete with top plate and push pin. The complete unit a great spare to have on hand.  Compatible With: Factory HK23E and MM23E firearms

All steel heavy duty carrying case to carry your Longer Heckler and Koch HK21 and HK23 Barrels. Features: Heavy Duty Steel  22" barrel carrying case Sling attached Rare and out of production Compatible with: HK21, HK21E HK23, HK23E