"The greatest single battle implement ever devised by man." General George S. Patton.
|Manufacturer||Springfield Armory, USA (*)|
|Action||Semi-Automatic. Gas-operated, rotating bolt.|
|Barrel length||24", 61 cm|
|Total length||43 3/8", 110.2 cm|
|Reloading||8 rounds clips|
|Weight||9.5 pounds, 4.3 Kg|
(*) The rifle I have access to. Other manufacturers produced this rifle.
When a round is fired (red arrow), gas is redirected through the gas port into the gas cylinder (blue arrow). This gas pushes on the operating rod, moving it backwards (green arrows). The operating rod rotates the bolt and pushes it back, ejecting the round. It also pushes the hammer down to rearm the trigger (yellow arrow).
The operating spring then pushes the operating rod forward. The bolt collects a new round from the clip, rotates to lock in the barrel chamber and is ready to fire again.
The bolt locks to the rear when there are no more rounds in the rifle.
Note the absence of a clip, it is ejected when the last round is fired (with the distinctive "PING" sound).
Each clip holds 8 rounds.
The safety switch is on the safe position if it is pulled back (picture on the right). It cannot be set if the rifle is not cocked.
The M1 has an aperture rear sight, with click-adjustable elevation and windage knobs.
Barleycorn-type. It can be moved lateraly for windage zero.