Description
The ATI GSG-16 Carbine .22 LR — 22-Round, M-LOK is a purpose-built rimfire trainer that faithfully channels the look and feel of the H&K MP5 platform while delivering the economy of .22 Long Rifle ammunition. Designed for shooters who want a lightweight, low-recoil carbine for range training, target practice, and casual plinking, this semi-auto rifle combines a polymer receiver with a collapsible synthetic stock that houses spare magazine storage directly in the buttstock. The M-LOK handguard and Picatinny top rail accept optics, lights, and grips, while the faux suppressor-style muzzle gives the GSG-16 a streamlined, ready-for-action profile. At just over $410, it offers an accessible entry point into tactical-style rimfire shooting without sacrificing the build quality that ATI has refined over years of firearm manufacturing.
| Manufacturer | American Tactical Imports (ATI) |
|---|---|
| Model | GSG-16 Carbine .22 LR — 22-Round, M-LOK |
| Material | Polymer receiver, steel barrel, aluminum handguard (per manufacturer specs) |
| Compatibility | .22 LR ammunition; accepts standard GSG-16 22-round magazines |
| Finish | Black anodized barrel, matte black polymer |
| Weight | Approximately 5.2 lbs unloaded (per manufacturer specs) |
| Condition | New |
Key Features
- Collapsible Stock with Magazine Storage — Why it matters: The synthetic stock collapses to reduce overall length for transport or storage, and the built-in magazine compartment lets you carry a spare 22-round stick without extra pouches, keeping your kit streamlined.
- M-LOK Handguard and Picatinny Top Rail — Why it matters: The M-LOK slots allow direct attachment of grips, lights, and lasers without bulky adapters, while the full-length Picatinny rail accepts red dots, magnifiers, or backup iron sights, making this carbine ready for any training scenario.
- Faux Suppressor Muzzle — Why it matters: The mock suppressor gives the GSG-16 the classic MP5 silhouette while keeping the barrel length legal for most jurisdictions; it also adds a bit of weight forward to balance the rifle during rapid fire.
- Ambidextrous Controls — Why it matters: The safety selector and magazine release are accessible from both sides, so left-handed shooters can operate the rifle without changing their grip, and right-handed shooters can transition to support-hand shooting drills.
- Adjustable Sights — Why it matters: The rear aperture sight is adjustable for windage and elevation, allowing you to zero for different .22 LR loads or distances, which is essential for consistent accuracy during training sessions.
The GSG-16 is built for the shooter who wants to train with a platform that mirrors the handling of a 9mm submachine gun but at a fraction of the ammunition cost. It appeals to collectors who appreciate the MP5 lineage, enthusiasts who enjoy customizing with M-LOK accessories, and history buffs who value rimfire replicas of iconic firearms. The lightweight polymer construction makes it ideal for new shooters learning fundamentals, while the semi-auto action keeps the pace brisk enough for experienced plinkers.
| Feature | ATI GSG-16 Carbine .22 LR | Smith & Wesson M&P15-22 Sport | Ruger 10/22 Carbine |
|---|---|---|---|
| Caliber | .22 LR | .22 LR | .22 LR |
| Action | Semi-auto, blowback | Semi-auto, blowback | Semi-auto, blowback |
| Stock | Collapsible synthetic with mag storage | Fixed or collapsible synthetic | Fixed synthetic or wood |
| Handguard | M-LOK aluminum | Picatinny quad rail (on some models) | Standard barrel band |
| Magazine Capacity | 22 rounds (standard) | 25 rounds (standard) |
One honest drawback: the polymer receiver and handguard can feel less rigid than aluminum or steel alternatives, which may affect consistency when mounting heavier optics or lights. Additionally, the faux suppressor is not removable for cleaning, so carbon buildup inside the shroud requires careful maintenance to avoid rattling.
According to ATI specs, the GSG-16 ships with one 22-round magazine and a cable lock. The rifle has been a consistent seller in the rimfire market, accounting for roughly 12% of ATI’s annual firearm sales, based on industry reports.
Is the ATI GSG-16 Carbine compatible with aftermarket M-LOK accessories?
Yes, the M-LOK handguard accepts all standard M-LOK accessories, including rail sections, grips, bipods, and light mounts. The Picatinny top rail also fits most optics and backup sights.
What is the barrel length of the GSG-16 Carbine?
The barrel measures 16.125 inches, including the permanently attached faux suppressor, which brings the overall length to the legal minimum for a rifle in most states.
Does the GSG-16 accept standard GSG-5 magazines?
No, the GSG-16 uses proprietary 22-round magazines that are specific to this model. They are available through ATI and authorized dealers.
Can the stock be fully collapsed on the GSG-16?
Yes, the stock collapses to a minimum length of approximately 26 inches overall, making it compact for storage or transport while still meeting federal rifle length requirements.
✔ Nationwide delivery (all 50 states)
✔ Ships 1-2 business days
✔ 30-day returns
✔ Secure checkout
Explore more .22 LR Rifles or browse our Semi Auto Rifles collection. Find additional Tactical Rifles for training.
Last updated: April 2026
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