These German-made HK21 bottom plates are required to complete a feed mechanism unit for the HK-21. The bottom plate is vital to keeping the feed mechanism locked in place during firing. Together with the feed mechanism assembly & top plate these parts work together to ensure reliable & effective feeding of ammunition. Held to H&K’s high standards, these plates are sure to go quick so get them while you can!
Fits all HK21, 11, 13 and HK21/23E's