With a carbon fiber external tube housing shielded aluminum baffles, the CGS Siren delivers on sound reduction, great looks, and insanely light weight. How light is insanely light? . . . Would you believe a scant 2.2 ounces? Whoa.
CGS Group‘s Siren, now available at Silencer Shop, is a .22 LR suppressor that isn’t specifically rated for other rimfire rounds. It is also not rated for full-auto use (likely due more to the 7075 aluminum baffles rather than the carbon fiber).
All of the Siren’s metal components are all 7075 T6 aluminum, Type III Hardcoat anodized. Machining and finish are clean as can be.
An included tool is used to tighten or loosen the end cap. Only gently finger tight is required.
With the end cap off, the sealed baffle stack will slide smoothly out of the carbon fiber external tube. Thanks to the sealed design of CGS’ “Orion” baffles, very little carbon fouling occurs inside the tube so the baffles do not become stuck and little to no cleaning of the tube is needed. This design is also stronger, as the baffles themselves provide gas pressure containment strength instead of solely the external tube, as is the case with many suppressors.
All baffles are identical, which simplifies re-assembly and allows the order of the baffles to be rotated (this can extend the time between cleanings and can even out any baffle wear that, if it’s going to occur, will be much more drastic on the first baffle).
I’m not too proud to admit that I used to be a huge carbon fiber slut back in my “car days.” Now that I’m so much older and wiser (also balder and fatter) I typically appreciate its functional use — when CF’s great strength-to-weight ratio is put to good effect — more than its aesthetic overuse, but would be lying if I claimed I’m not drawn to its unique looks.
In the case of the Siren suppressor, the carbon fiber tube is obviously functional as it’s doing the job of the aluminum tube seen on most other .22LR silencers. For the same strength it’s also doing this job at a fraction of the weight of aluminum.
At the same time, carbon fiber has poor thermal conductivity. In effect, it’s basically its own suppressor heat shield. Even after rapidly firing through a few magazines, the CF stayed cool to the touch while an aluminum suppressor tube would have been extremely uncomfortable or possibly hot enough to burn me.
Over the last few months I have shot the CGS Siren on various .22 rifles and pistols with barrels ranging from 5 inches to 16 inches, both semi-auto and bolt-action, and have been extremely pleased.
Not only is the Siren silencer one of the very lightest weight rimfire suppressors on the market, it accomplishes this feat while still maintaining what I’d call a “full-size” length of 5.25 inches and a normal rimfire silencer diameter of 1.06 inches. In other words, it isn’t a mini suppressor and its weight savings stem from materials design, not size reduction.
It’s no surprise, then, especially considering CGS’ knack for innovative, extremely effective baffle designs, that the Siren easily hangs with any rimfire suppressor on the market for sound reduction. It’s insanely quiet on any gun.
The Siren is also so dang lightweight that you literally cannot tell it’s there. It simply doesn’t change the balance of whatever you’re shooting at all.
At an MSRP of $399, the CGS Siren’s price is also in-line with other high-end rimfire suppressors and is lower than many. After shooting it extensively I simply have nothing negative to say about the Siren at all other than it doesn’t do any cute modular tricks as is the trend these days.
CGS Suppressors’ Siren delivers class-leading sound reduction, benchmark-setting light weight, and cool and unique styling in a very well-made silencer. What else could you ask for?
Specifications: CGS Siren Suppressor
Caliber: .22 LR
Diameter: 1.06 inches
Length: 5.25 inches
Weight: 2.2 ounces
Mount Type: 1/2×28 direct thread
Materials: 7075 aluminum and carbon fiber
Finish: Type III Hardcoat Anodized
Full Auto Rated: No
Decibel Rating: 112 to 115 dB average depending on host and ammo
MSRP: $399 (around $329 at Silencer Shop)
Ratings (out of five stars):
Utility * * *
With lightweight aluminum baffles, the Siren is limited to 22LR and a semi-auto rate of fire.
Form Factor * * * * *
The Siren looks modern and cool, and it’s so dang lightweight you literally can’t tell it’s on your gun. Great design, both functional and aesthetic.
Suppression * * * * *
The CGS Siren goes toe-to-toe with the quietest rimfire suppressors on the market with, depending on the platform, little or literally zero first-round pop.
Overall * * * * *
Delivering world-class sound suppression, insanely light weight, and high-tech looks in a beautifully machined silencer at a fair price is a definite recipe for a five-star review.
All photos courtesy the author.