HK21 / HK23 / HK11 Series

NOS MG3, MG42 ground Tripod With HK21 Adapters This is a Lafette-style ground mount, dated "3/63," manufactured by DISA (Madsen) for use with MG42, MG3, and MG53 machine guns. Original Olive green paint throughout the tripod's body, and includes shoulder...

HK21 Cylinder Head Screw - Belt Inlet Replacement cylinder head screw for the HK21 belt inlet assembly, manufactured to original specifications. Ensures proper fit, secure retention, and reliable feeding operation. Compatible With: HK21 THIS CLOSEOUT...

HK21 Drum Hanger - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50...

HK 21E, 23E Rear Sight Elevation Drum Factory HK elevation drum for 21E, 23E, and 13E rear sights.  This part is new old stock and no longer in production. Limited quantity available. Compatible With: HK 21E HK 23E HK 13E

HK 21E, 23E Rear Sight Windage Drum Factory HK rear sight windage drum.  New old stock and out of production.  Only a few units available. Compatible With: HK 21E HK 23E HK 13E

MM HK21E, HK11A1, HK11E Barrel - 17.7" Michael's Machines HK21E barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Barrels come stripped, requiring a flash hider or muzzle device and barrel handle...

MM HK21 Barrel - 17.7" - CHF Michael's Machines HK21 barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Barrels come stripped, requiring a flash hider/muzzle device and barrel handle assembly (all...

H&K 91/G3/MSG90 5 Round Magazine Spring This factory HK spring is designed for the 5-round HK91, G3, and MSG90 magazines. Built for durability and reliable feeding, it's an essential replacement part to keep your magazine in top condition. Compatible...

Heckler and Koch Barrel Shroud Sling Mount for your HK21 Features: German-made spring steel sling clip Designed for the HK21 and HK21-A1 barrel shroud Correct HK production part for a secure sling attachment Compatible With: HK21, HK21-A1 HK21E,...

H&K 21 3 Position Trigger Housing - RARE This rare 3 position trigger housing features Mexico markings and is designed specifically for the HK21. It is a unique find, never before offered, and has never been available with this...

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.