This is the successor to the Micro RONI to transform your Glock 17, 19, 22, 23, 31, 32 , 45 into a nifty carbine. This the Gen 2 model in black. I've used is a total of 4 times (each session with only 20 rounds) and works flawlessly with my Glock 19 Gen 3. Included is a compact red dot sight and all the originally included items from the manufacturer. Asking price is $220 or a reasonable offer. No FFL needed. Pick up in Ashburn.