GSG Firefly .22 Review: A Budget Trainer vs the Ruger Mark IV

A 10-round .22 with a metal-alloy build, judged as a trainer and plinker, then set against the benchmark target pistol it is most often compared with.

What the Firefly is for

Some pistols earn their place by being the gun you actually shoot. A .22 LR is cheap to feed, mild to shoot and quiet enough that new shooters do not flinch, which is why a rimfire pistol is a standard recommendation for anyone learning. The GSG Firefly is built for that role: a 10+1 pistol with a 4-inch barrel and, per its listing, a zinc-alloy construction. Retailers also list variants, including longer threaded-barrel versions and colored finishes, so confirm the exact model before you click.

This is a desk review. We have not fired the Firefly; the points below come from the published specifications and from how .22 semi-auto pistols generally behave.

What a budget .22 teaches well

A .22 pistol is a training tool before it is anything else. The skills that matter on a centerfire pistol, grip, stance, sight picture, trigger press, can all be practiced with a rimfire at a fraction of the recoil and cost. A few things it does particularly well:

• Flinch diagnosis. If your groups open up when you expect recoil, a .22 shows you.
• Volume. You can put a lot of rounds through it in an afternoon, which is where skill comes from.
• Manual-of-arms transfer. A semi-auto .22 lets you practice loading, slide manipulation and malfunction clearing in a lower-stakes setting.

Our piece on what makes a gun easy to shoot goes deeper on the four problems new shooters face, and recoil is only one of them.

Where the Firefly makes sense

The Firefly is aimed at people who want a small, simple rimfire to plink with, teach a family member on, or keep in a range bag as a warm-up pistol. Its pitch is accessibility: low recoil, a manageable grip and a magazine that holds ten.

It also makes sense as a first gun to hand to a nervous beginner. The lower noise and recoil shorten the confidence curve, and a short session at a range with a .22 often tells a new shooter more about whether they enjoy the sport than a heavy-recoiling pistol would.

Where it asks for compromises

A few honest caveats, none of them specific to the Firefly but all worth weighing:

• Ammunition sensitivity. Rimfire semi-autos are generally pickier than centerfires. Rimfire cartridges vary more in power and consistency. Plan to test several brands rather than buying a case of one load on day one.
• Alloy construction. The listing describes a zinc-alloy build. Different materials respond differently to heavy use and cleaning. Read the manufacturer's care guidance, and do not assume a long service life on parts you cannot replace.
• Parts and accessory support. Smaller-volume pistols usually have fewer aftermarket sights, magazines and holsters than the big names. Check what is available for your specific model.
• Trigger and sights. Expect functional rather than refined. If you plan to shoot for accuracy, check the manufacturer's sight and trigger details.

The benchmark: Ruger Mark IV Target

The Ruger Mark IV Target is the pistol most buyers are comparing against, either explicitly or in the back of their minds. The listing shows a 10+1 .22 LR with laminated wood grips and a blued finish. It sits in a different tier. The Mark series is known as a staple target and training pistol, and the Mark IV is notable for a one-button takedown that makes field-stripping and cleaning far simpler than the older Ruger designs.

It is a bigger commitment, in size and in outlay, and it is the gun to look at if you want to shoot groups at distance, compete in a rimfire discipline, or keep a pistol that will last decades. RimfireAmmo's Mark IV for bullseye piece goes deep on setup, and their .22 pistols by role roundup places it among its peers.

Side by side

Which one to buy

• Pick the Firefly if you want a low-cost, easy-to-handle rimfire for plinking and teaching, and you will not be disappointed by good-not-great accuracy.
• Pick the Mark IV Target if you expect to use the pistol for years, want to shoot small groups, or may try a rimfire match.
• Pick neither if you really want to train for a concealed-carry pistol. A centerfire trainer or a rimfire conversion for the gun you actually carry may serve you better.

Ammunition and magazines: a testing routine

Because rimfire semi-autos can be selective, the sensible way to bring a new one into service is a deliberate test:

1. Start with two or three brands of standard-velocity ammunition in the same bullet weight. Mark each brand's boxes so you can tell them apart.
2. Shoot a magazine or two of each and note any failures to feed, fire or eject. Failures that cluster around one brand point to the ammunition.
3. Try the magazines separately. If one magazine produces most of the problems, retire or replace it. Magazines are wear items.
4. Keep notes. A short list of which loads ran and which did not saves guesswork later.
5. Clean after the session. Rimfire residue builds quickly and can cause feeding problems later.

If the pistol still misbehaves after you have ruled out ammunition and magazines, contact the manufacturer or distributor under the warranty instead of modifying anything. We cannot say how this particular pistol performs, so treat this as a process you apply to any new rimfire.

Cleaning and storage

A .22 semi-auto does not need a lengthy routine, but it does need a regular one. Field-strip according to the manual, clean the bore, wipe the action, and lubricate only where the manufacturer directs. Excess oil attracts grit, and rimfire ammunition is often waxy or lubed, which compounds buildup. After cleaning, store the pistol unloaded, with ammunition kept separately, in a lockbox or safe. A small, light pistol is easy to move around the house, which makes secure storage especially important. Our guide to gun safe ratings explains what the labels on storage products really mean.

Optics, sights and accuracy expectations

Look at the sights before you buy. Many budget rimfire pistols come with basic sights that are adequate for plinking at short distances but frustrating for accuracy practice. Check whether the Firefly's listing mentions adjustable sights or a mounting option for an optic. If you intend to add a red dot, confirm that a compatible mount exists, because rimfire slides are not all drilled the same way. Realistic expectations help: this is a pistol for short-range fun and fundamentals, so set up your targets accordingly and enjoy it for what it is.

Using a .22 well

A short checklist that applies to either pistol:

1. Learn the safety rules before you load anything. Treat a .22 with the same respect as any firearm.
2. Start with standard-velocity ammunition from a reputable maker, then test others.
3. Clean regularly. Rimfire residue builds up fast.
4. Bring spare magazines. A single magazine can be a failure point.
5. Warm up with it before centerfire practice. Many shooters use a .22 as a ten-minute fundamentals drill.

Rimfire is also a legitimate gateway to the sport as a whole. If you eventually want a rifle, SportingRifles' piece on rimfire training explains how the same fundamentals carry across.

Editorial note: This is an independent editorial overview built from manufacturer specifications and publicly available information. We have not performed hands-on testing of the products discussed, and nothing here is a performance guarantee. Verify specifications, compatibility and legality for your own situation.

Affiliate disclosure: Some links on this page are affiliate links to Ammunition Depot. We may earn a commission if you buy through them, at no extra cost to you. Our editorial choices are not influenced by commissions. Check current price, stock and specifications directly with the retailer.