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The Thompson gun barrel was "ported" (i.e. drilled with holes) to provide a controlled release of high pressure gas into the silencer that surrounds it before the bullet leaves the barrel. The silencer, 2 inches (5.1 cm) in diameter, went all the way from the back of the barrel to well beyond the muzzle , making up half the overall length of ...
It is derived from "Wel" from "Welwyn" (a prefix used by covert equipment designed by Station IX) and "rod", gangland slang for gun, as a way to obscure its purpose. [1] The Welrod is designed for use by irregular forces and resistance groups, and is an extremely quiet gun due to its integrated silencer. Approximately 2,800 were made in wartime ...
It also penetrates deeper and initially yaws faster. 300 BLK rounds are effective out of barrels as short as 4.5 in (110 mm). Weapons chambered for the round can be as light, compact, and quiet when suppressed as submachine guns like the 9×19mm MP5, 5.7x28mm FN P90, and 4.6×30mm MP7 while having more energy and accuracy at longer range. [16] [17]
VKS (ВКС) or VSSK (ВССК) is a Russian bullpup, straight-pull bolt-action, magazine-fed sniper rifle chambered for the 12.7×55mm STs-130 subsonic round. The weapon is also known by the name VSSK and the additional name Vykhlop (Выхлоп), "Exhaust", which comes from the development program.
This muzzle device, described as a 'blast compensator', is a combination sound suppressor and muzzle brake, and is notable in its attempt at moderating the .50 BMG's muzzle blast and recoil, unlike contemporary large-caliber rifles, which are typically equipped with muzzle brakes only. Like the DSR-1, this rifle retains its bullpup ...
[13] [14] The resulting sound signature is significantly lower than an unsuppressed rifle, and even from a short distance it cannot be recognized as the discharge of a rifle. [15] The VSS Vintorez suppressor and operating systems are exactly the same as the AS Val, but optimised to fire the 9×39mm SP-5 subsonic cartridge with a hardened steel ...
Another silencer technology uses a captive piston cartridge; examples are the Smith & Wesson Quiet Special Purpose Revolver (QSPR) and the Soviet and Russian PSS silent pistol, [45] OTs-38 Stechkin silent revolver and the MTs-116M suppressed sniper rifle, a 12.7mm silenced development of the 7.62mm MTs-116M. [46]
As a muzzleloader, the rifle is not considered a firearm under the Gun Control Act of 1968; [2] and the integrated suppressor is exempt from the US National Firearms Act because it is permanently attached to the rifle. [3] When fired, the rifle has a report of 139.9 decibels. [1] The firearm does not have iron sights, so requires a telescopic ...