The basic principle of the pistol is recoil operation.

For a semi-automatic pistol, this is typically accomplished by recoil operation.

It uses a short recoil operation system with gas assistance and a rotary bolt.

Johnson's light machine gun was one of the few to operate on recoil operation and was manufactured to a high standard.

The recoil operation is part short and part long recoil.

Recoil operation is an operating mechanism used in locked-breech, autoloading firearms.

Long recoil operation is found primarily in shotguns, particularly ones based on John Browning's Auto-5 action.

Naming it the Auto-5, Browning's semi-automatic relied on long recoil operation.

The Auto-5 relied on long recoil operation; this design remained the dominant form in semi-automatic shotguns for approximately 50 years.

Recoil operation is a type of locked-breech firearm action used in semi-automatic and fully automatic firearms.

The primary advantage of roller-delayed blowback is the simplicity of the design compared to gas or recoil operation.

The result is a heavier gun, for its size, that is bulkier and may be less aesthetically appealing than designs employing recoil operation.

Other operating principles for self-loading firearms include blow forward, gas operation, recoil operation, Gatling, and chain.

Roller-delayed blowback operation differs from roller-locked recoil operation as seen in the MG 42.

These conversions typically convert the firearm from gas operation or recoil operation to a simple blowback operation.

The MG42 is roller-locked and Recoil operation (short recoil) with Muzzle booster.

The pistol's operation principle is the Short recoil operation, with a mechanism similar to that of the Browning HP.

The firing mechanism differed from the recoil operated MK 101 in that it used a combination of gas and recoil operation.

Recoil operation uses the rearward movement of parts of the weapon counter to the ejecta moving forward, as described by Newton's third law of motion.

A semi-automatic pistol harnesses the energy of one shot to reload the chamber for the next, typically via recoil operation, blowback, or gas operation.

The Desert Eagle is a rare example of a semi-automatic pistol that siphons off some of the gases instead of relying on short recoil operation.

Recoil operation uses the backward force applied by the projectile (due to Newton's Third Law of Motion) to retract the bolt assembly.

Since blank cartridges generate very little recoil, far less than that produced by a live round, the recoil operation mechanism is not suitable for use with blanks.

There are two primary modes of operation for combat shotguns, the pump action, and various semi-automatic designs, mostly gas operation and recoil operation designs.