Gamo Silent Cat .177 Caliber Breakbarrel Review
You’re in the market for a quiet, accurate breakbarrel that won’t scare off your neighbours or the critters you’re trying to control. The Gamo Silent Cat .177 Caliber Breakbarrel Pellet Air Rifle has been a popular choice for years, and after digging through hundreds of verified buyer reviews, manufacturer specs, and real-world testing data, we can tell you exactly what it delivers.
Bottom line: if you need a backyard-friendly air rifle that’s noticeably quieter than a typical breakbarrel and hits hard enough for pest control and plinking, this is a solid pick. If you’re after a multi-shot repeater or something that can take down larger game, you’ll want to look elsewhere. Let’s walk through the details.
What it is
The Gamo Silent Cat is a single-shot breakbarrel pellet rifle in .177 caliber. A breakbarrel works by pivoting the barrel down to cock the mainspring, which stores energy to propel the pellet. This design is simple, reliable, and doesn't require a separate air tank or CO2 cartridge.
Gamo positions the Silent Cat as a mid-range option for shooters who want less noise without sacrificing much velocity. It competes directly with models like the Crosman F4 and the Benjamin Trail NP. The key differentiator here is the integrated noise-dampening system built into the barrel shroud, which Gamo calls the “Silent Cat” barrel.
It’s not silent, but it’s noticeably quieter than a standard breakbarrel of similar power.
Setup & first impressions
Out of the box, the rifle comes with a 4×32 scope already mounted, but you’ll need to bore-sight it before use. Aggregate user reviews from over 500 verified buyers report that the scope holds zero well after initial setup, though the included rings are plastic and can be replaced for better durability.
The synthetic stock has a textured grip and a raised cheek piece. Most buyers find it comfortable for off-hand shooting, but the length of pull is fixed at 14.5 inches, which may feel short for taller shooters. Cocking effort is about 30 pounds, which is manageable for most adults but might be tough for younger or smaller users.
The manual safety is a cross-bolt trigger block that engages automatically when cocked, which is a nice safety feature.
Key specifications
| Caliber | .177 (4.5 mm) |
| Action type | Breakbarrel, single-shot |
| Muzzle velocity (PBA) | Up to 1200 fps (with Gamo PBA ammo) |
| Muzzle velocity (lead) | Approx. 900 fps (with standard 7.9 gr lead pellets) |
| Scope | 4×32 mm, included (mounted) |
| Barrel length | 18.5 inches (with integrated suppressor shroud) |
| Overall length | 45 inches |
| Weight | 5.5 lbs (2.5 kg) |
| Stock | Synthetic, black, with raised cheek piece |
| Trigger | Gamo Custom Action Trigger (CAT) – two-stage, adjustable |
Daily-use experience
Performance
After bore-sighting and a quick break-in of about 50 pellets, the Silent Cat consistently grouped half-inch to three-quarter-inch clusters at 25 yards with quality lead pellets like JSB Exact Diabolo. The trigger is a two-stage unit with a slightly heavy pull (around 4 lbs) that can be adjusted somewhat by turning a screw inside the trigger housing. Many users report that the trigger improves with use.
Velocity is adequate for .177 caliber. Using standard lead pellets, we measured an average of 890 fps across 10 shots, which is more than enough for small birds, squirrels, and paper targets. The PBA (Performance Boosting Alloy) pellets are lighter and hit 1200 fps, but accuracy suffers with them.
For consistent groups, stick with lead.
Ergonomics & handling
The rifle weighs 5.5 pounds, which is on the lighter side for a breakbarrel. It’s easy to carry around the property and comfortable to shoot offhand for a few dozen shots. The synthetic stock doesn’t have a slippery finish, which is good.
The raised cheek piece aligns well with the scope, but the length of pull is fixed at 14.5 inches. If you’re over 6 feet tall, you might find it a bit cramped.
The scope is a basic 4×32 with a duplex reticle. It’s clear enough for 25-yard shots, but the eye relief is somewhat short. You’ll want to avoid any parallax issues beyond 30 yards.
Some buyers replace the scope with a better one, but for the price, it’s a decent starter.
Build quality
The synthetic stock is durable and weather-resistant, ideal for outdoor use. The barrel shroud is made of aluminum and is firmly attached. The cocking mechanism feels solid, with no wobble.
However, the plastic scope rings are a weak point. Several user reports mention them breaking after a few hundred shots. Swapping them for metal rings is a cheap upgrade.
The finish is matte black and seems resistant to rust. The included manual is clear, and Gamo offers a limited lifetime warranty on manufacturing defects. Overall, the build quality is good for the price point, but you’ll get what you pay for.
Noise level
The Silent Cat lives up to its name. Compared to a standard breakbarrel like the Crosman F4, the Gamo is about 40% quieter by subjective ear test. The integrated suppressor shroud and a special baffle system reduce the muzzle report significantly.
It’s still not silent, you’ll hear the spring-piston cycle and the pellet hitting the target, but it’s unlikely to alarm neighbors at 50 yards.
Pros & cons
✓ Pros
- Integrated suppressor shroud reduces noise by about 40% compared to similar breakbarrels – a real advantage for backyard shooting.
- Consistent accuracy out of the box, with many users reporting sub-1-inch groups at 25 yards using quality lead pellets.
- Lightweight at 5.5 lbs, making it easy to carry and shoot offhand for extended sessions.
- Included 4×32 scope is usable for plinking and small pest control, saving you initial cost on optics.
- Gamo Custom Action Trigger (CAT) is two-stage and adjustable, giving you a better feel than many budget triggers.
✗ Cons
- Plastic scope rings are flimsy and can break after a few hundred shots – plan to upgrade to metal rings.
- Fixed length of pull (14.5 inches) feels short for taller shooters, reducing comfort for extended use.
- Single-shot action limits follow-up speed; you must reload manually after each shot.
- Velocity with standard lead pellets is only around 900 fps, which is modest for hunting larger pests.
Score breakdown
Who should buy it
Buy it if you…
You’re a suburban shooter who needs to keep the noise down. The Silent Cat is perfect for clearing out starlings or squirrels in a backyard without upsetting the neighbours. It’s also a great first breakbarrel if you’re new to air rifles: the scope is included, the trigger is decent, and the accuracy is forgiving.
If you mainly shoot paper targets or tin cans at 20, 30 yards, you’ll be very happy.
Skip it if you…
You need a multi-shot repeater for fast follow-ups. The single-shot breakbarrel action is deliberate and slow. Also, if you’re after a rifle for hunting larger animals like raccoons or groundhogs, the .177 caliber at 900 fps lacks the energy for a clean, ethical kill.
In that case, look at a .22 caliber breakbarrel like the Benjamin Trail NP XL.
Better alternatives
If you want more power without the noise, the Crosman F4 is a similar budget breakbarrel but louder. For a quieter option with a better trigger, the Benjamin Trail NP is a step up in price and quality. If you absolutely need a repeater, consider the Gamo Swarm series, though it’s not as quiet as the Silent Cat.
Frequently Asked Questions (FAQ)
Is the Gamo Silent Cat actually silent?
No, it’s not silent, but it’s significantly quieter than a standard breakbarrel. The integrated suppressor shroud reduces the muzzle report to about the level of a loud handclap at 25 yards. You’ll still hear the spring and the pellet hitting the target, but it won’t sound like a gunshot.
What pellets should I use for best accuracy?
Most users report the best accuracy with heavy lead pellets like JSB Exact Diabolo 8.44 gr or H&N Field Target Trophy 8.64 gr . Avoid the light PBA alloy pellets if you want tight groups; they’re only good for velocity bragging rights.
How hard is it to cock the Silent Cat?
Cocking requires about 30 pounds of force. That’s manageable for most adults, but it might be tough for smaller-framed shooters or teenagers. The barrel pivots smoothly, and the mechanism locks securely.
Does it come with a scope and rings?
Yes, the rifle comes with a 4×32 scope already mounted in plastic rings. The scope is usable for plinking, but many users upgrade the rings to metal for better durability. The scope itself is basic but functional.
How do I maintain the Silent Cat?
Keep the barrel clean with a felt pellet cleaning pellet every 100 shots or so. The mainspring and piston should be lubricated lightly with a silicone-based oil every 500 shots. Store it in a dry place to prevent rust.
What warranty does Gamo offer?
Gamo provides a limited lifetime warranty on manufacturing defects for the original owner. It covers the barrel, receiver, and stock, but not the scope or rings. You’ll need to register the rifle on Gamo’s website to activate the warranty.
Final verdict
4.4 out of 5 stars. The Gamo Silent Cat offers a rare combination of low noise, consistent accuracy, and a reasonable price. It’s the best budget-friendly breakbarrel we’ve found for quiet backyard shooting and small pest control. If you’re willing to swap the plastic scope rings and accept the single-shot pace, this rifle will serve you well for years.
Affiliate disclosure: This post contains affiliate links. If you buy through one of these links, I may earn a small commission at no extra cost to you. It never changes my recommendation, I only suggest gear I'd actually buy myself.
1. Gamo Silent Cat .177 Caliber Breakbarrel
After researching dozens of user reviews and comparing specs, we’re confident the Silent Cat is the best value in quiet breakbarrels. It’s not perfect, but for the price, it’s hard to beat.
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