Micro Roni for Gen 6 Glock: Tool-Free G17, G19, G45 Chassis

Roni Corporation released a Micro Roni pistol-to-carbine conversion kit cut for the Gen 6 Glock, covering the G17, G19, and G45. The base kit carries a $289 MSRP, ships in black and Flat Dark Earth, and is available now through master distributor 1791 Outdoor Lifestyle Group, with stock at the wholesalers Sports South and Chattanooga Shooting Supplies.

The chassis is the same clamshell concept Roni has sold for years. The Glock drops into a polymer shell that wraps the frame and slide, locks in place without tools, and turns the pistol into a braced PDW with an extended top rail, side accessory rails, and a forward grip surface. Nothing on the pistol is drilled, pinned, or replaced, so the same gun goes back into a normal holster the moment it comes out of the shell.

What is new is the fitment. Roni lists the Gen 6 option as its own model on the Micro Roni Gen 4X configurator, sitting alongside the long-running “Glock 17, 19, 19X, 19C, 22, 23, 25, 31, 32, 45, 47” shell rather than replacing it. A Gen 6 host takes the Gen 6 shell.

A chassis indexes on the frame, and the Gen 6 frame is the part Glock changed most. Glock's own launch announcement lists an integrated palm swell, bilateral thumb rests, an enlarged beavertail, an undercut trigger guard, and RTF6 dual-pattern texture spread across more of the grip. A holster with an elastic or oversized mouth absorbs that; a rigid shell that has to close around the frame and hold zero on a top-mounted optic does not.

That is also why Gen 6 support has trailed. Aftermarket parts that touch the frame or the fire control have needed their own Gen 6 versions rather than carrying over from Gen 5, which is the same reason the Gen 6 trigger market restarted from scratch this year. Optics are the exception, because the Gen 6 Optic Ready system replaced MOS with a three-plate direct-mount interface. Our Gen 6 optic plate guide breaks down which plate carries which footprint, and the broader Gen 6 upgrade guide covers what has actually shipped for the platform so far.

The base kit is the chassis and the brace. Roni builds the rest of the system as bolt-on accessories: magazine holders that park a spare on the shell, light mounts, extra Picatinny rails, charging handles, optic mounts, slings, and a belt holster sized for the assembled chassis. Both the kit and the accessory line come in black and Flat Dark Earth.

The top rail is the piece that changes how the gun shoots. A red dot sits at a fixed height above the slide instead of on it, so the same optic and the same zero survive every time the pistol goes in and out of the shell. Pair it with a light on a side rail and the result handles like a short PDW while the serialized part underneath stays an ordinary Glock. Our Glock chassis guide ranks the Micro Roni against the MCK and the rest of the category, and you can drop a chassis into a full build in the builder to see what fits it.

The Gen 6 G17, G19, and G45 reached dealers on January 20, 2026, and they are the first Glocks that ship optic-ready as standard with the Gen 6 Optic Ready system and its three included plates. The flat-faced trigger and undercut trigger guard shorten trigger reach, magazines carry over from Gen 3, 4, and 5, and Gen 5 holsters still fit because the external dimensions did not change. The trigger itself is the regression: the wall is mushier and the reset less distinct than the Gen 5 it replaces, which we covered in the Gen 6 review.

For a chassis build that matters less than usual. The Micro Roni does not touch the fire control, and the added contact points do more for practical accuracy at 25 yards than a trigger job would. If you are deciding between generations before buying a host, the Gen 5 versus Gen 6 breakdown walks the differences.

The braced Micro Roni keeps the host a pistol. The 2023 ATF brace rule has been vacated or enjoined across multiple jurisdictions and ATF proposed removing the regulatory language in May 2026, but classification still turns on whether a specific configuration is designed and intended to be fired from the shoulder, so a brace is not a blanket exemption.

The line is the stock. Roni also sells a Gen 4X stock option, and fitting a genuine shoulder stock to a pistol whose barrel is under 16 inches makes a short-barreled rifle. That requires an approved Form 1 before the parts go together, and the Form 1 registers the serialized pistol. The making tax has been $0 since the One Big Beautiful Bill Act took effect on January 1, 2026, but fingerprints, CLEO notification, and NFA registration all still apply. Five states plus DC ban SBRs outright and four more restrict them, so check state law before ordering the stock instead of the brace.