One of Mussy's RONI series, the Medium RONI is a chassis in which you can mount your Glock 17, 18 or 19, thereby turning your handgun into a carbine-esque firearm. This RONI includes a fixed brace, four rail attachments, ambidextrous charging handles, an ejection port and a large hole up front to accept a compensator or suppressor. The Medium RONI is an iteration on the eariler Mini RONI.
Your Glock is attaches to the RONI using a picatinny rail, meaning that this model will only work if your Glock frame contains this rail. Mussy recommends that you print the rail test file first to ensure your pistol will fit.
Included in the release package are several alternate versions of each part (including five different uppers and two stock options!) so that you can customize your Medium RONI as you see fit.