I have reinforced the handguard in the bottom section, because otherwise vertical grips could easily break the print. I have also designed a “gas block” which serves as additional fixation point for the handguard, but it only fits the short barrel.
M4 cone screws are used in the gas block. You will need to tap it with M4 thread.
gas_block.stl | 100.7KB | |
MLOK_handguard_printables.stl | 296.6KB |