GSG Firefly Drum Magazine Adapter | Taurus TX22 Conversion

About this product

The GSG Firefly Drum Magazine Adapter is a mechanical block that lets a GSG Firefly / GSG-16 style .22 LR drum magazine feed in a Taurus TX22. The Firefly drum has a different magazine catch cut and body profile than the TX22's factory magazine, so the adapter indexes the drum in the TX22's magazine well and presents the feed lips at the correct height for rounds to strip cleanly. The drum magazine itself is not included; this listing is the adapter block only, and it's a small, inexpensive part relative to what it lets you do at the range. It's a niche fitment fix, but for TX22 owners chasing high-round-count plinking sessions, it solves a real problem that no amount of extra magazines can fix on its own.

What is it used for?

It's a compatibility piece for TX22 owners who already have, or want to run, a GSG Firefly / GSG-16 110-round .22 LR drum on a pistol that wasn't designed to accept it. Without the adapter, the drum's catch cut and body shape don't match the TX22's magazine well, and the drum simply won't seat correctly on its own. It's a popular option for plinking days where reloading speed matters less than round count on tap, and it turns a stock TX22 into a much longer-running range gun without the constant reloading a standard-capacity magazine requires.

What fits it?

It fits the Taurus TX22 and the TX22 Competition. It does not fit the TX22 Compact. On the magazine side, it's built specifically for the GSG Firefly / GSG-16 110-round .22 LR drum, not other drum or stick magazines, so don't expect it to work as a universal adapter for other brands or capacities you might already own.

Do I need any tools to install it?

No. It's a polymer body with steel contact points, and no tools are needed to fit the adapter into the magazine well. It's meant to be a straightforward add-on, not a modification to the pistol itself, and it comes out just as easily if you want to go back to a standard TX22 magazine for a given range session or to hand the pistol to someone unfamiliar with the drum setup, without leaving marks or wear on the magazine well from repeated swapping, so you can move between drum and standard magazine as often as a given range day calls for.

How does it perform with different ammo?

Best results come from high-velocity .22 LR, and the listing recommends keeping the drum spring wound per GSG's instructions. Standard-velocity or bulk-pack .22 LR can be less reliable in high-capacity drums generally, so if you're chasing smooth function, start with quality high-velocity rounds and keep the drum properly maintained between range trips rather than storing it loaded for long stretches.

Does it work in California?

This is where it gets restrictive: magazine capacity limits apply in several states, and California limits detachable magazines to 10 rounds for most owners. A 110-round drum is well over that limit, so this adapter-and-drum combination is not something we can sell or ship for use in California. See our California gun laws page for the current rule before you consider ordering the drum to pair with this adapter, since the adapter alone won't get you around the state's magazine capacity law.