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Gas piston air rifles

Air Rifle BSA GRT Comet Evo Silentium 4.5mm

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Comet Evo Silentium is an affordable break-barrel air rifle with a gas piston from the traditional company Birmingham Small Arms. The rifle combines sufficient power, quality workmanship and many years of experience into a light yet powerful gun made from modern materials. The Silentium version is equipped with a moderator that reduces the noise produced when firing.
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€ 176.5

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Caliber:
4,5 mm / .177
Ammunition:
Pellets
Muzzle Energy:
22 J
Velocity:
296 m/s

Show More Specs

Warranty:
24 Months
Manufacturer:
BSA
EAN:
793676069876
Item ID:
BSA-162-S

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PRODUCT DESCRIPTION

Machine translated

Comet is a single-shot break-barrel air rifle with a gas piston; to load it you need to break the barrel (cock it), place a pellet in it and return the mechanism to its original position. A manual safety inside the trigger guard, which needs to be disengaged before shooting, protects against unintentional discharge.

The muzzle velocity can reach up to 296 m/s, while the energy goes up to 22 J. Shooting accuracy is improved by adjustable fibre-optic sights (Tru-Glo), which are clearly visible even in poor light conditions. 

The simple, functional design is finished on one side with a synthetic stock with a rubber butt pad; the front section is dominated by the forend and a rifled barrel with a moderator. The stock has a textured surface around the trigger area similar to a pistol grip – this ensures a secure hold. The rifle is also equipped with an 11 mm rail for mounting a riflescope.

The barrel length is 370 mm with a calibre of 4.5 mm; the overall length is 1120 mm and the rifle weighs 2.7 kg.

Package contents

  • Air Rifle BSA GRT Comet Evo Silentium 4.5 mm

This Product Is Listed in the Following Categories

Parameters

Manufacturer:
BSA
Caliber:
4,5 mm / .177
Ammunition:
Pellets
Muzzle Energy: ?
22 J
Velocity:
296 m/s
Weight:
2700 g
Overall Length:
1120 mm
Barrel Length:
370 mm
Iron Sights:
Yes
Mounting Rail:
Yes
Stock Material:
Synthetic
Powerplant: ?
Gas Piston
Safety:
Yes
Fire Mode:
Manual Cocking
Action:
Break Barrel
Warranty:
24 Months

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Customer Reviews (10)

4.8

10× rated

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By submitting your review, you are agreeing to our review guidelines. It will be published once we make sure it corresponds with our terms and conditions.

Rostislav

Verified customer, from balistas.cz 26.11.2022

Machine translation

It meets expectations. Cool shooting – 10 m, frost minus 4 degrees. She's accurate, won't let me stop shooting. Mounted VALIANT LYNX 6×40 AOSIR MIL-DOT rifle scope. Rifles – JSB Exact 4,51 mm.

  • Fits well in the hand
  • Power
  • Silent shooting
  • Nice look
  • Shooting accuracy
  • No disadvantages so far

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V.Š.

Registered user, from balistas.sk 12.12.2022

Machine translation

Handy, compact, easy to operate. Satisfaction with the selection

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Martin

Registered user, from balistas.cz 21.07.2023

Machine translation

  • Fits well in the hand, sturdy
  • Accurate to 30
  • Quiet

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Mark Lutsin

Verified customer, 14.07.2026

  • It's very easy to use. Surprisingly, it doesn't shake at all. It just hangs in the air. The silencer is very well made.
  • The sight is complete junk! It wobbles from side to side. And nothing is locked in place. You can just move it 1.5-2 mm to the side with your fingers. And it stays that way. This is completely unacceptable. The sharp plastic edges on the underside of the forend are very annoying and hurt your hand.

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Vratislav Mrukwia

Verified customer, from balistas.cz 28.01.2026

Machine translation

  • - high performance 22J
  • - easy stretching (nitro piston)
  • - Static sights are better than those on the spring gun SPA LB600
  • - very quiet compared to the Hatsan Striker S1000
  • - small recoil

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Martin Sypecký

Verified customer, from balistas.cz 09.01.2026

Machine translation

I shot with an air rifle as a boy and always enjoyed it – target shooting. So why not try it again. This air rifle caught my eye – power, caliber, gas piston – less recoil and the appearance of the air rifle. And finally, the price.

  • Light and easy to hold. So far I have only shot a few times, but it was very accurate. I just didn't expect the drawing to be so difficult, that surprised me. So far, I am very satisfied.
  • None.

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Martin Holka

Verified customer, from balistas.sk 27.11.2025

Machine translation

I have had a few air rifles from Slavia, through Hamerli to Gamo… some so expensive, but this one is definitely the best. As a plus, I give the weight, it is very light… it is pleasant to cock, the silencer really mutes the noise. They hit the wood or catcher louder with the pellets. A small minus is that the safety is manual, i.e. you secure it yourself after cocking, I was used to automatic, but it's just a matter of habit (it also has its advantages)… in any case, out of five stars, I definitely give five.

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Pavel

Verified customer, from balistas.cz 17.02.2024

Machine translation

In the given price range, it has good parameters and, after first experiences, adequate accuracy. I don't know if it's just my piece, but the mounting rail is minimally milled, so I had to modify the mounts to get them into the grooves.

  • accurate
  • light
  • good energy
  • less recoil when compared to spring piston
  • insufficiently milled 11mm rail

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