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Because of the MIL-STD 1474D, the ability to reduce the suppressed level to below 140 dB peak sound pressure level (dB pSPL) was the goal for firearm suppressor manufacturers. In MIL-STD 1474D, materiel that produced peak levels below 140 dB were not subject to a requirement to wear hearing protection devices that could affect a person's ...
Combined with firearm sound suppressors, subsonic ammunition may significantly reduce sound levels compared to normal ammunition. [4] Specific reductions depend on the ammunition and suppressor. The peak sound pressure levels of a Remington 700 .223 caliber bolt-action rifle firing high-velocity (supersonic) ammunition using a GEMTECH G5-5.56 ...
Firearms fitted with SilencerCo suppressors. Sparrow 22, which is compatible with multiple calibers up to 5.7×28mm and rated for full-auto fire. Warlock 22, a .22 LR silencer that weighs 3.0 oz and reduces sound to 114.6 dB. Spectre 22, which handles a range of ammunition from .22 LR to 5.7×28mm.
The High Standard HDM is a conventional blowback-operated semi-automatic pistol fitted with an integral silencer which decreases its report by more than 20 dB. [4] This pistol design was originally delivered on 20 January 1944, and original contract models were blued with a parkerized (phosphate) finish on the silencer. Follow-on models were ...
The decibel rating level is 25dB. The Wind Talker can be mounted to any rifle with either a 7.62 mm or 5.56mm bore diameter as long as it utilizes a Vortex flash hider. The Wind Talker sound suppressor is in the military inventory system as NATO Stock Number: NSN 1005-LLL-997965, utilizing the same NSN number as the M14DC which it replaced. [1] [5]
The suppressor was the M14SS-1, designed for the M14 rifle, and forty suppressors were sent unofficially to the 9th Infantry Division in Vietnam during early 1969 for combat evaluation, and an undisclosed number were procured under ENSURE Number 360.1, but the suppressor was not adopted officially.
This due to the requirements of US commercial customers who must procure a different Bureau of Alcohol, Tobacco, Firearms and Explosives tax stamp for each silencer they own. [5] Their first silencer was the Sandman series. [3] In 2018 Dead Air introduced Key-Mo, an adaptor which allows the use of Silencerco silencers with Dead Air muzzle ...
The Sound Reduction Index is expressed in decibels (dB). It is the weighted sound reduction index for a partition or single component only. This is a laboratory-only measurement, which uses knowledge of the relative sizes of the rooms in the test suite, and the reverberation time in the receiving room, and the known level of noise which can pass between the rooms in the suite by other routes ...