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Glossary
GLOSSARY / DICTIONARY
A B C D E F G H I J L M N O P R S T V W Z

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 Term Definition
Magazine A spring-operated reservoir for cartridges for a repeating firearm; often removable.  
Magazine Follower A plate, mounted to the top of a spring, inside a magazine, over which cartridges may slide smoothly as they are fed into the chamber of a repeating firearm.  
Magazine Safety A device that prevents a gun from firing if the magazine has been removed.  
Magnification Magnification is the power rating of the scope, indicated by the symbol "X". A 10X (ten power) scope makes objects seem ten times closer than with the naked eye.  
Magnum A term indicating a relatively heavily loaded metallic cartridge or shotshell and, by extension, a gun safely constructed to fire it.  
Mannlicher Stock A term used to describe a Germanic-styled rifle or carbine with a stock extending all the way to the muzzle.  
Match Grade A higher quality item used to increase accuracy; generally used for competition in a match.  
Mil Angular change in aim that moves the point of impact of an artillery projectile one meter at a range of 1000 meters.  
Minute of Angle (MOA) A 1/60th part of a degree, the unit of measure used in adjusting rifle sights.   
Monte Carlo Cheekpiece "A cheek rest, built onto the side of a gunstock, which also extends upward to raise the comb of a stock,   
Monte Carlo Comb An elevated gunstock comb which drops to a normal height at the heel. Useful on rifle stocks to align the eye with a telescopic sight better, and on trap guns to raise the point of impact.  
Muzzle The end of a barrel, pointing towards the target, out of which the load is discharged.  
Muzzle Brake A fitting attached to the muzzle of a firearm, with a series of perforations designed to deflect some of the forward-rushing gasses and pull the firearm forward off the shoulder, reducing recoil.  
Muzzleloader A muzzleloader is any firearm into which the projectile and usually the propellant charge is loaded from the muzzle of the gun.