I have made a foregrip that fits the Sinden arcade. It makes it far more comfortable to hold rather than having your palm facing upwards. The set includes the picantinny rail, screws to mount the rail and the foregrip with locking bolt. These have been 3D printed with eSun PLA + with 30% infill so very hardy. 

Simply unscrew the two screws on the underside of the reload grip. Pass the new longer screws through the picatinny rail and reload grip. Line them up (can be tricky to see but I do it by feel) and gently screw them down again evenly. Take care here, the Sinden piece of plastic they screw into doesn't look the most sturdy. I supply a small amount of LM grease for the sliding piece just to lube it up a bit. Probably not absolutely essential but I did this with mine. 

Many different colours available, matched as closely as I can to the original colours but I am very specific with my filament type so have chosen strength and quality over exact colour matches. Please message me which colour way you would like. This includes black, grey, blue and red. Other more wacky colours can be catered too.

Stocks are coming soon and lens caps for when you store your or to simply stop the sensor being triggered when you are using your computer mouse say. 

Check out the video below for how to fit the parts:

https://youtu.be/dEbYDjPjeKY