HK21 / HK23 / HK11 Series

H&K 21E/23E Left Receiver Reinforcement Rail Weldment Genuine German-made weldment for left-side receiver reinforcement rail. Precision-machined using the correct steel and milling for you HK21E or HK23E build. Compatible With: HK21E HK23E

H&K HK11 LMG 7.62×51mm NATO Parts Kit HK 11 Parts Kit 7.62x51mm demilled to BATFE specs with 2 spare G3 aluminum magazines. The HK11 was built during the 70’s and 80’s. These are interchangeable with other HK Variants and can be...

HK German 21E Cartridge Guide - Complete New old stock HK German .308 HK21E feed mech cartridge guide.

HK21 NOS Bolt Head - FMP Genuine new old stock FMP contract date-coded bolt head for the HK21 platform.  Perfect for a replacement or spare as these bolt heads are no longer in production. Compatible with: HK21 (Early and FMP, NOT compatible with...

HK21 Barrel Handle with Insert -7.62x51, .308, 5.56, .223 - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Factory German upgrade for HK21 barrel handles Compatible With: HK21 THIS CLOSEOUT PART IS...

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...

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.