HK21 / HK23 / HK11 Series

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

New HK German 21/23E Latest Production Bipod No longer in production or available. Compatible With: Older HK21's MM23 MM11 MM13 as well as other HK21-type builds

HK 11E Magazine Exchange Kit- AS SHOWN HK21E to HK11E conversion kit to convert an HK21E to an HK11E to accept HK91/G3 style magazines. Converts from belt fed to a magazine fed on one platform of firearm. Includes: HK 11E Bolt Carrier Group Complete (no...

HK 11E bolt carrier HK21E to HK11E bolt carrier used to convert an HK21E to an HK11E to accept HK91/G3 style magazines. This is the HK11E bolt carrier only. Includes: HK 11E Bolt Carrier Last units no longer made- these were the LAST units HK Germany...

HK 21E & 23E Series Feed Mechanism Roller Axle  

HK21E & HK23E Forward Assist Compatible With: HK 21 HK 21E HK 23E HK 11 HK 13