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An L85A2 rifle with a partially-shrouded barrel A Winchester Model 12 combat shotgun with a barrel shroud and attached bayonet. A barrel shroud is an external covering that envelops (either partially or full-length) the barrel of a firearm to prevent unwanted direct contact with the barrel (e.g. accidental collision with surrounding objects or ...
An MG-42 medium machinegun with a shrouded muzzle and barrel. A muzzle shroud, ... Front sight extensions on an ISSF air rifle are effectively muzzle shrouds used to ...
A bolt-on thermal sleeve. A thermal sleeve, or blanket, is a device around the length of a gun barrel of a large caliber gun, typically found on modern tanks.Its primary purpose is to provide a more consistent temperature to the gun barrel, preventing distortions due to differential thermal expansion caused by the temperature differences around the barrel when firing.
It had a distinctive barrel cooling shroud (containing a finned breech-to-muzzle aluminium heat sink to cool the gun barrel), and top-mounted pan magazine. The Lewis served until the end of the Korean War , and was widely used as an aircraft machine gun during both World Wars, almost always with the cooling shroud removed, as air flow during ...
Heat shields are often affixed to semi-automatic or automatic rifles and shotguns as barrel shrouds in order to protect the user's hands from the heat caused by firing shots in rapid succession. They have also often been affixed to pump-action combat shotguns, allowing the soldier to grasp the barrel while using a bayonet. [citation needed]
The barrels of 'FSB' (Fully-shrouded barrel) rifles have an outer shroud (sleeve), internal baffles, and larger overall diameter. This is intended as a more compact, albeit less effective alternative to a screw-on or slip-on silencer, which would add extra length to the rifle.
A growing trend, started on air rifles and muzzleloaders, is the use of short pieces of optical fiber for the dots, made in such a way that ambient light falling on the length of the fiber is concentrated at the tip, making the dots slightly brighter than the surroundings. This method is most commonly used in front sights, but many makers offer ...
On the AKM assault rifle, the brake also angles slightly to the right to counteract the sideways movement of the rifle under recoil. Another simple method is porting, where holes or slots are machined into the barrel near the muzzle to allow the gas to escape. [13] More advanced designs use baffles and expansion chambers to slow escaping gases.