Small Arms Industries

Sound Suppressors -

 

Tips and informations:

 

When fitting a sound suppressor to a firearm or an airgun, always make sure that the bore of the gun is perfectly linear with the sound suppressor. Use a lathe to make the thread on the muzzle, consult a gunsmith to have this work done.

When using a sound suppressor on a firearm or an airgun, make sure that safety comes first -  bear in mind the normal safety rules when using a firearm or an airgun.

- Make sure that the sound suppressor, is firmly screwed onto the thread.
- Always make sure that the silencer does not loosen when firing.
- Always check the sound suppressor for obstructions – look through the barrel from the rear.

 

When using a rifle sound suppressor, bear in mind that people and animals around you is not being noticed that a gun is fired to the same extend when not using a sound suppressor.
 

- Always use sub-sonic ammunition for optimal effect, the sound suppressor does not affect the ballistic crack of super-sonic ammunition.

 

A sound suppressor does not - normally - affect accuracy.

The fitting of a silencer affects the point of impact as much as is done by fitting a barrel weight of the same weight. Correction of sights or scope is necessary.

 

Do not use a sound suppressor for other calibre than it is made for.
 

- Multi-clamp .22 l.r. sound suppressor is only made for .22 l.r.

Semi- or full automatic firearms usually makes extra noise when ejecting the spend case from the ejection slot.

A short barrel makes a larger noise than a longer barrel.

 

A sound suppressor must be cleaned and oiled to extend its life span.

- The most effective way to clean a sound suppressor is to soak it in solvent for some hours, then clean it with compressed air. Be careful to use goggles and gloves when cleaning sound suppressors, note instructions on the substance you intend to use.

Additives, like grease, oil, water or even snow may enhance the performance of the sound suppressor. Popular known as “wet can”, the effect of these substances cools the expanding gasses. The volume of the gasses then decreases, which have a positive effect on the performance of the sound suppressor. The different substances is only to be used in the amount of one teaspoon full per shot.
 

E.Ve-Tech - sound suppressors.

Sound suppressors using E.Ve-Tech or “Elastomer Valve Technology” have a high silencing effect compared to its size. E.Ve-Tech is usually used only on pistol and shotgun sound suppressor because precision is affected by the valve elements. One must consider double the normal barrel spread when using E.Ve-Tech.

 

Gunfire sound is impulse noise.

Being exposed to for example a hunting rifle calibre .308 being fired, one shot may be more damaging to ones hearing than working for years in a noisy environment.

To reduce hearing damages, the fitting of a sound suppressor to a gun seems to be the logical solution.

We have experimented with very many versions of damping materials on shooting range covers - but nothing comes close to simply fitting a sound suppressor to the gun. Compared to making noise walls, etc. fitting a silencer is by far the most effective method in terms of silencing and also the most cost effective way to go.

The shooter can wear hearing protection, but no one can make people or animals living around the shooting stand wear hearing protection !

Our aim is not as much to reduce the sound for the shooter but most of all for people and animals living around the shooting stand. Reducing urban disturbances from firearms noise is always welcomed.

Cars, bikes, planes etc. is fitted with sound suppressors – very logical if one thinks about it - silencing done at the source of the noise is always the most effective.
 

Hollywood type silencing is for Hollywood only.
 

It is not possible to completely silence a firearm using traditional cartridges needing a mechanical firing pin to set of the primary charge. A sound from firing a gun consists of several different sounds and includes;

- muzzle crack
- super-sonic crack
- bullet flight noise
- impact noise ( bullet hits target )
- echoes
- mechanical noise
- ejecting noise

The human ear is usually not able to detect more than one crack, but when using a sound suppressor one may detect bullet flight noise and impact noise.

We use the term “sound suppressor” because we do not aim to completely silence a gun, for technical reasons mentioned before this is not possible. We want to suppress the noise mainly aimed at other people than the shooter, but of cause with added benefit to the shooter.
 

Pros and cons on firearm sound suppressors!
Further added benefits when using sound suppressors is much reduced recoil, making it easier to stay on target and much more comfortable to fire the gun. Much reduced muzzle flash and disturbing blasts on bystanders or fellow shooters on the stand.

Deficits when using sound suppressors;
- The gun is less handy, but longer and heavier.
- A sound suppressor costs extra on top of gun.
- Correction of sights or scope is needed.
- A sound suppressor needs to be maintained, cleaning etc.

Benefits when using sound suppressors;
- Civilian sound suppressor use benefits;
- Less disturbance to environment.
- Cheap way to fulfil environmental noise regulations.
- Hunting dogs is not as effected by noise.
- Better target scores following more comfortable shooting conditions.

Police and security sound suppressor use benefits;
-
Learner shooters will become accustomed to firearms much quicker.
- Better target scores following more comfortable shooting conditions.
- Less disturbance to environment when the need is to use a firearm.
- Less disturbance to environment when training.

Military sound suppressor use benefits;
-
Reduced risk of detection due to less noise and much reduced muzzle flash.
- Recruits become accustomed to the firearm much faster.
- Easier to stay on target when firing semi- or fullautomatic.
- Better target scores following more comfortable shooting conditions.
- Less disturbance to environment when training.

 

 

 

More on sound suppressors

 

 

Firearms noise : By SAI

 

One hand guns and silencers : by SAI

 

Tips when using Sound suppressors : by SAI

 

Sound suppressors when shoting on target ranges : by SAI