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A suppressor, sound suppressor, sound moderator, or silencer is a device attached to or part of the barrel of a firearm or air gun which reduces the amount of noise and visible muzzle flash generated by firing. Suppressors are typically constructed of a metal cylinder with internal mechanisms to reduce the sound of firing by slowing the escaping propellant gas and can also slightly increase the speed of the bullet.
In most countries, suppressors are regulated by firearm legislation to varying degrees. While some have allowed for sporting use of suppressors (especially to mitigate the costs of hearing loss and noise pollution), other governments have opted to ban them from civilian use.

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  1. Gunbuggy

    Suppressor alignment rod readings. Need a little help??

    Using a surefire / geissele rod I checked the alignment on a couple of rifles with cans. Pictured are the results I got. first pic is a Daniel Defense mk18 sbr. Didn’t expect much issues there, and alignment rod shows totally centered. however the following two are a 10.3” SBR, DSA MK18 mod 0...
  2. M

    Suppressor alignment rod.

    I’m looking for someone local to Salem with a 9mm alignment rod for suppressors. Just finished my Form 1 can and would like to check it before firing. Willing to pay $20 for a quick check!
  3. papersoldier

    Correct / acceptable baffle & endcap hole diameter.

    Just have a quick question for those here experienced with building form 1 suppressors, specifically in 9mm: Is a 3/8" (.375) baffle and endcap hole diameter adequete for 9mm projectiles (assuming the threads on the firearm are perfectly concentric to the bore), or is that cutting it too close...
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