Indian army have advanced type weapons like hand gun, shot gun , machine gun, SMGs , assault rifles, sniper rifles, grenade, mortar etc.
A handgun is a short-barreled firearm that can be held and used with one hand. The two most common handgun sub-types in use today are revolvers and this is semi-automatic pistols.
A shotgun is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called shot, or a solid projectile called a slug. Shotguns come in a wide variety of sizes, ranging from 5.5 mm (.22 inch) bore up to 5 cm (2.0 in) bore, and in a range of firearm operating mechanisms, including breech loading, single-barreled, double or combination gun, pump-action, bolt-, and lever-action, revolver, semi-automatic, and even fully automatic variants.
A machine gun is a fully automatic mounted or portable firearm designed to fire rifle cartridges in rapid succession from an ammunition belt or magazine. Not all fully automatic firearms are machine guns. Submachine guns, rifles, assault rifles, battle rifles, shotguns, pistols or cannons may be capable of fully automatic fire, but are not designed for sustained fire. As a class of military rapid-fire guns, machine guns are fully automatic weapons designed to be used as support weapons and generally used when attached to a mount or fired from the ground on a bipod or tripod. Many machine guns also use belt feeding and open bolt operation, features not normally found on rifles.
A submachine gun (SMG) is a magazine-fed, automatic carbine designed to shoot handgun cartridges. The term “submachine gun” was coined by John T. Thompson, the inventor of the Thompson submachine gun.
The submachine gun was developed during World War I (1914–1918). At its peak during World War II (1939–1945), millions of SMGs were made as close quarter offensive weapons. After the war, new SMG designs appeared frequently. However, by the 1980s, SMG usage decreased. Today, submachine guns have been largely replaced by assault rifles, which have a greater effective range and are capable of penetrating the helmets and body armor used by modern infantry. However, submachine guns are still used by military Special Forces and police SWAT teams for close quarters battle (CQB) because they are “a pistol-caliber weapon that’s easy to control, and less likely to over-penetrate the target”
A rifle is a portable, long-barreled firearm designed for accurate long-range shooting, to be held with both hands and braced against the shoulder for stability during firing, and with a barrel that has a helical pattern of grooves (“rifling”) cut into the bore wall. The term was originally rifled gun, with the word “rifle” referring to the machining process of creating grooving with cutting tools, and is now used for any long handheld device designed for well-aimed discharge activated by a trigger, such as the personnel halting and stimulation response rifle. Rifles are used extensively in warfare, law enforcement, hunting and shooting sports.
A grenade is an explosive weapon typically thrown by hand, but can also refer to projectiles shot out of grenade launchers. Generally, a grenade consists of an explosive charge, a detonating mechanism, and firing pin inside the grenade to trigger the detonating mechanism. Once the soldier throws the grenade, the safety lever releases, the striker throws the safety lever away from the grenade body as it rotates to detonate the primer. The primer explodes and ignites the fuze (sometimes called the delay element). The fuze burns down to the detonator, which explodes the main charge.
India are procurement of these weapons from Canada, Spain, Russia, Soviet Union, USA, Belgium and many of reputed country. And some weapons are Indigenous.
These weapons have different caliber as per their capacity.