Groza Frontgrip (Airsoft)

This is a front grip that I made for my Printeble Groza ( https://www.thingiverse.com/thing:6014635 ).
I tested it on a cqb field and it performed great.

For better stability, I used a longer steel rod (outer barrel) that goes into the handgrip.
The new one is 360 mm long.
You can also increase the length of your inner barrel by 100 mm, so max length is about 403 mm.

If you don't want to do all that I also added the "top part no rod", this one has bigger walls and should probably also work.
If your inner barrel is too short, like mine, I also added a stabilizer so that the rod is not free floating in the gun.
You can fixate it with tape so it doesn't move.

You also need M3x18 cylinder head screw, M3x25 cylinder head screw and one m3 nut.