Build it in three steps Pick the host pistol, match the Micro RONI or MCK version that fits it, add the red dot, light and sling. Or skip the chassis and buy a 9mm carbine.

The pistol chassis, done by the book

A Micro RONI or MCK turns a Glock into something else: a shell with a forend, a full-length optic rail, a light mount and a sling point, that opens in seconds to give the pistol back. Micro RONI Shop sells the chassis and conversion kits, the host pistols that go in them, the 9mm carbines that are the alternative, and the red dots, lights and slings that finish the build. Our guides say which chassis version fits which pistol, which pistol to buy if you do not have one, and whether a chassis or a carbine is the right platform for you. We are an independent store, not affiliated with CAA, Glock or any maker.

The law matters here more than on most products, and we do not skip it. A chassis without a stock is an accessory and ships to your door; the pistol is a firearm and ships to your FFL. Attaching a shoulder stock to a pistol makes a short-barreled rifle that needs ATF approval first, and braces have their own history; our legality guide lays it out as of 2026 and every chassis here is sold without a stock. Nothing we sell converts any firearm to automatic fire.

The city pages cover twenty cities from Fort Lauderdale and Austin to Omaha and Indianapolis, each with its state's purchase rules, feature rules and public ranges.