MonoCore .22

Optimal damping for .22 LR


Read more about weight, dimensions, maintenance and other recommendations in the tabs under the product – or in the banner at the top under “Instructions.”

This product is currently out of stock and unavailable.

Optimal for .22 LR and air rifles

It does not take much to dampen the very small and gunpowder-weak calibers. This small lightweight silencer in pure aluminum is perfect for the purpose, and at the same time it is extremely affordable.

Max Size

Max .22

Caliber recommendation

The MonoCore .22 muffler is made specifically for .22 calibers. Due to the large amount of gunpowder in the 22-250, it is not recommended to use a MonoCore .22 for this caliber. Here, for example. a Sonic 35 is a far more durable choice.

Be aware that even though a SubSonic .22 has an oversized hole size to effectively fit a .17, .17 calibers also have a lot more gunpowder than e.g. .22 LR, and therefore a SubSonic .22 does not handle a .17 caliber particularly well. Here, a SubSonic .17 is far better, both in terms of attenuation and durability.

Technical data

Weight: approx. 86 grams
Diameter: 30 mm
Length: 114 mm
Elongation of pipe: 114 mm


In Denmark, all Nielsen Sonic silencers are covered by a 5-year total warranty, provided they are purchased directly from us, and the customer shows up at our production with both the silencer and the rifle it is mounted on.


Never shoot the pipe too hot. Feel free to give the muffler a puff WD40 or similar at the rear end before mounting and after disassembly. Especially if the muffler is used in humid weather.
Always allow the muffler to dry before placing it in storage.
Clean the muffler as needed, using only oil and a cloth.
Avoid using alkaline cleaners, ultrasonic cleaners or brush and scrub cream.
If it is to remain possible to separate the muffler, it is recommended that you regularly separate all modules and apply a little new thread lubrication.


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