Gas from burning gun powder is used to extact, eject and load the next round into the chamber.
There are too many types: airguns that are used in the auto industry, Air Rifles, Air pistols, Air soft guns.
You take it to a trained gunsmith for evaluation and repair.
The semi-auto and full auto AK-47s have different designs. Not only does the full auto have different parts, but those parts cannot fit in the semi-auto only version of the AK-47. It is against US law to have a semi-auto that can be "readily converted" to full auto.
The M14 was never factory made as a semi-auto.
Bolt handle was provided as a back up in case the semi auto mechanism did not function. Which it frequently did not.
If you can find a custom maker, maybe, otherwise, no
Semi-auto requires the hammer to be cocked for the first shot.
The first production semi auto pistol was the Mauser c/96 "broomhandle" pistol.
There are currently no semi auto firearms on the market which chamber the .45 Long Colt.
Automatic firearms work with a kind of "manual conveyor belt" mechanism. Tapping the trigger will fire a single round, akin to semi-auto fire. Holding the trigger activates a small set of gears that turn at a remarkable rate, ejecting an empty shell and replacing it with a fresh round at a continuous rate. Semi-auto doesn't have that same mechanism, or it is rendered inactive in semi-auto fire mode. The rate of fire is determined by how quickly multiple rounds are shot, or how quickly the gears turn. Examples of auto fire weapons are the SAW and M4A1, the latter having a semi-auto fire option.
Semi auto air guns are driven by C02 gas. when the trigger is pulled some of the C02 not only fires the projectile but drives gears that get the next pellet or bb in line to fire the next projectile.
hello this is a good midrange gun and yes it will shoot semi auto but if you live in the UK then it will only shoot semi auto if it is also bought in the UK it will only shoot semi auto too because that is the law as in other countries it is legal for it to shoot full auto.