HK21 Starter Tab

A simple starter tab allowing your HK21 to feed off of M13 NATO links. Slide an M13 link over the thin end. The thick tab design intentionally depresses the roller in the feed mechanism to allow the tab to be pulled through. Give it a good firm slap and the tab will eject from the gun with the link retained. Visit my instagram for videos of it in use.
Note: This wont work with a HK21E, DM6 link or DM1 belts

Print 100% infill, as pictured out of ABS or ASA to avoid warping/strength issues. Pictured PLA tab is warped.