The muzzle brake is also called recoil compensator. This device is a feature which is integral to barrel or muzzle of a cannon or firearm construction or connected to it, with an intention to redirect part of propellant gases. This is to counter unwanted muzzle rise and recoil. Internal muzzle brake in barrels often is considered to be ported. Muzzle brake concept had been initially introduced for the artillery. It became a common feature for several anti-tank guns, mostly for the ones that are mounted upon tanks. The purpose was to reduce area taht will be necessary to take up kickback and recoil strokes. The best Muzzle Brakes are rather used in different types of pistols and rifles. They control recoil as well as barrel rising, which is quite normal after firing. To take part in pistol competitions, they are used and generally termed as the best Compensators.
The terms are quite interchangeable like muzzle climb, muzzle flip or muzzle rise. It refers to the front end (the barrel’s muzzle end) in a handheld firearm to rise immediately after firing. But less muzzle rise is experienced by firearms having less height to barrel centerline from grip line.
The main reason for muzzle to rise is because in majority of the firearms, the barrel centerline is above contact centre between firearm’s stock and grip and that of the shooter. The fired bullet’s reactive forces and exiting propellant gases from the muzzle tend to act down directly the barrel’s centerline. If this force line is above contact point center, then a torque (rotational force) or moment is created, thereby causing rotation of the firearm and rising of the muzzle. Unusual muzzle brake is present in M-1946 Sieg automatic rifle, to make rifle to climb downwards. However, the user is able to use it to fire with just a single hand and in full automatic condition.
Construction & design
Before planning to Buy Muzzle Brakes, it will be useful to know about it in details. In concept, they are simple like the ones that are used on M47 Patton tank such as 90mm M3 gun. It comprises of a tube, small in length, mounted to barrel end at right angles. Often, brakes use vents, slots, baffles, holes along with similar devices. Muzzle brake strategy will be to control and redirect combustion gas bursts, followed by projectile departure.
Basic principle is used in designing all types of muzzle brakes. They diver partly combustion gases from bore’s muzzle end at perpendicular angle to barrel’s long axis. The diverted gases’ momentum however, is not known to add recoil. Angle of the directed gases is likely to basically affect behavior of the brake. Directing gases upwards, they are likely to exert downward force to counteract muzzle rise. Device, if any attached to muzzle end is likely to add mass, thereby increasing inertia. Its center will move forwards. The latter diminishes muzzle rise, while the former diminishes recoil.
Compensator or muzzle brake construction is quite simple like that of diagonal that is cut at barrel’s muzzle end to direct upwards the escaping gases. The brake on AKM assault rifle slightly angles to the right. Under recoil, it counteracts the rifle’s sideway movements.
Porting is another simple method, where slots or holes are created within the barrel close to the muzzle to ensure gases escape safely. Expansion chambers and baffles re used in advanced designs to slow down escaping gases. It is the principle on which linear compensator runs. Often, the ports are included within the expansion chambers, thereby producing multi-chambered, long recoil compensators that are generally noticed on IPSC raceguns. For more details, check out https://www.dbtac.com/.
Gases in majority of the linear compensators are redirected forwards as it is the direction where bullets go. They allow expansion of gases within the compensator, surrounding the muzzle. However, holes here face forwards to allow expansion of gases prior to leaving the firearm, considered to be muzzle shroud. Muzzle rise is reduced similar to that of sideways brake. With all gas escaping in similar direction, muzzle rise is to alter gas velocity, requiring kinetic energy. As brakes redirect directly backward the gases, effect noticed is quite similar to that of the aircraft jet engine’s reverse thrust system. Blast energy that comes back towards the shooter tends to push against recoil, thereby reducing effectively recoil’s actual amount on shooter, thus redirecting gas towards shooter.
Brake is termed as porting, as gases are directed upwards. It involves precisely drilled holes or ports in the slide & barrel’s forwards top part on pistols. Part of the expelled gas before projectile departure is diverted through the holes in a specific direction to reduce the firearm’s tendency to rise. It is Newton’s 3rd law, upward exhaust causes downward reciprocal force. Hence, firearms should never be ported on barrel’s bottom, since it is likely to aggravate muzzle rise, instead of reducing it. With porting, there is the consequence to reduce muzzle velocity and barrel length. On the other hand, added to barrel, the muzzle brake can be termed to be an extension and does not reduce muzzle velocity.