GSG FireFly .22 LR 4.9in Threaded Purple
Pros & cons
What works
- Factory-threaded 4.9-inch barrel — ready for suppressors without a $100+ aftermarket barrel
- Weighs 26.6 oz unloaded — nearly 10 oz lighter than a steel-framed .22 LR target pistol for all-day carry
- Blowback operation — simplifies field stripping to under 60 seconds for quick cleaning
Trade-offs
- Includes only one 10-round magazine — immediate additional $50+ investment required for practical training
- Purple anodized frame finish shows holster wear and handling marks more visibly than matte black or FDE
- No included hard case — ships in cardboard, requiring a separate $30-$50 purchase for secure storage
Video review
Expert review
Specs at a glance
About this product
The GSG FireFly .22 LR 4.9in Threaded Purple is a purpose-built semi-automatic pistol offering economical suppressor-ready training and practice. This is a straightforward blowback-operated .22 LR, designed from the ground up for low-cost operation and simple maintenance. Its defining mechanical feature is the 4.9-inch cold-hammer-forged barrel, factory-threaded 1/2x28 to immediately accept rimfire suppressors without adapter concerns.
What is the GSG FireFly .22 LR 4.9in Threaded Purple used for?
This pistol is used exclusively for affordable, high-volume suppressor training and fundamental marksmanship practice. Its primary function is to provide a dedicated platform for running subsonic .22 LR ammunition through a can, generating minimal noise and almost no felt recoil. This makes it ideal for introducing new shooters to suppressed fire or for seasoned operators to maintain trigger control and presentation mechanics at a fraction of the cost of centerfire training. At 243.99, its operational cost-per-round is its main operational advantage.
How does the GSG FireFly compare to the Taurus TX22?
The GSG FireFly is better for immediate suppressor use, while the Taurus TX22 is better for high-round-count reliability out of the box. The FireFly ships with its threaded barrel and adapter installed, ready for your suppressor without an additional $80-$120 barrel purchase like many rimfire pistols require. However, the Taurus TX22 typically offers superior reliability with a wider variety of bulk-pack .22 LR ammunition and a higher standard 16-round magazine capacity versus the FireFly's single 10-round magazine. For a pure suppressor host, the FireFly wins on initial cost; for a primary training pistol, the TX22 offers better logistics.
What does it weigh and what are the dimensions?
The FireFly has a listed unloaded weight of 26.6 ounces (754 grams) and an overall length of 7.8 inches with the 4.9-inch barrel. Its grip frame width measures 1.2 inches at its widest point, which is slim for a duty-style .22 LR trainer. The Picatinny rail section under the dust cover provides 1.5 inches of usable mounting surface for compact optics or a dedicated white light, though its purpose is better served by a simple micro red dot for target transition drills. These dimensions make it a compact, neutral-balancing tool, not a direct analog for a full-size service pistol.
Who is this NOT for?
This pistol is not for anyone seeking a primary defensive tool or a direct, weight-matched analog to a centerfire service pistol. Its blowback .22 LR operation does not replicate the slide velocity, lock time, or recoil impulse of a locked-breech 9mm, making it a poor choice for serious defensive pistolcraft training. It is also not for shooters who demand flawless feeding with every brand of ammunition; rimfire pistols are inherently ammunition-sensitive, and this one is no exception. If your goal is a one-to-one training replacement for your the Stevens 334 Rifle in .308 Win, look to a dedicated .22 LR conversion kit for your primary platform instead.
What's in the box?
You receive the pistol, one 10-round steel magazine, a 1/2x28 thread protector, and the owner's manual. Notably, the package does not include a hard case, additional magazines, or any cleaning tools. The single magazine is a significant logistical limitation for any meaningful range session, necessitating the immediate additional purchase of at least two spare magazines, which typically run $25-$35 each. The manual covers basic field stripping but lacks the detailed torque specs and headspace gauging procedures I expect from a contract-oriented manual, though that's standard for this price point.
Is the GSG FireFly worth it at $243.99?
Yes, but only if your explicit use case is a dedicated, low-cost suppressor host for recreational plinking and basic mechanics practice. At this price, you are buying a functional threaded-barrel platform, not a refined target pistol or a ruggedized trainer. The value proposition collapses if you intend to use it unsuppressed or must immediately invest in multiple magazines and potentially an aftermarket recoil spring to improve reliability. For a similar investment in a general-purpose .22 LR pistol, a used Ruger Mark IV often provides better out-of-the-box accuracy, but you'll spend another $100+ to thread it, making the FireFly a logical entry point for the NFA-curious shooter.
Key attributes
| upc | 810113113968 |
| manufacturer | German Sport Guns / GSG |
| manufacturer part number | GERG2213TFFLA |
| action | Double / Single Action |
| atf type | Pistol |
| barrel length | 4.90" |
| caliber/gauge | .22 LR |
| capacity | 13 + 1 |
| color | PINK |
| length | 12.2000 |
| number of magazines | 1 |
| package height | 2.5 |
| package width | 8.0 |
| product type | Semi-Auto Pistol |
| safety | Decocker |
| shipping weight | 2.75 |
| sights | Adjustable Rear |
| sights type | ADJUSTABLE |
| slide description | Serrated |
| state restriction (guam) | NO SALE TO GUAM |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (pr) | NO SALE TO PUERTO RICO |
| state restriction (vi) | NO SALE TO VIRGIN ISLANDS |
Frequently asked questions
- Does the threaded barrel work with a SilencerCo Sparrow?
- Yes, the factory 1/2x28 threading is directly compatible with the SilencerCo Sparrow and most other standard rimfire suppressors. You must first ensure your suppressor is rated for .22 LR and that you have complied with all NFA regulations, including Form 4 approval, before attaching it. The thread adapter is pre-installed; no gunsmithing is required for mounting.
- How many rounds does the magazine hold?
- The included steel magazine has a 10-round capacity. This is a common capacity for imported .22 LR pistols due to various state regulations and import points systems. Aftermarket or higher-capacity magazines for the GSG FireFly are not widely available, so plan your training strings and ammunition logistics around this 10-round limit.
- Is the slide serration aggressive enough for manipulation?
- Yes, the rear slide serrations provide adequate purchase for standard press-check and slide-racking procedures. They are machine-cut and measure approximately 0.5 inches in height, offering positive grip even with wet or gloved hands. They are not as deeply cut or forward-angled as those on a custom 1911, but they are perfectly functional for the intended role of this training pistol.
- Can I mount a red dot sight on this pistol?
- Yes, via the integrated Picatinny rail. The rail section will accept any micro red dot mounted on a Picatinny base, such as those from Vortex or Holosun. I recommend a compact model like the Holosun 407K to avoid excessive overhang. The pistol's slide is not cut for direct optic mounting, so a rail-mounted solution is your only option, which will increase the sight height over bore by approximately 0.8 inches.