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Principles of Operation of the Semi-Automatic
System
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The SKS operates on the simple principles of a semi-automatic
weapon. Gas ported off from the barrel helps operate the mechanical
aspects of the carbine. The bolt pulls a cartridge from the non-detachable
10 round, staggered, double column magazine and inserts the cartridge
into the chamber. The bolt is locked into place and the chamber
is sealed when the bolt locking lug is engaged by the receiver locking
lug. When the trigger is pulled and the hammer is released, the
floating firing pin (inside the bolt) impacts the primer of the
cartridge, igniting the powder and propelling the bullet down the
rifled barrel. Near the end of the barrel gas is siphoned off and
ported into the carbine’s gas cylinder and gas tube. The gas piston
is then driven back towards the receiver, impacting the gas piston
extension (that is spring controlled). The gas piston extension
travels towards the receiver striking the bolt carrier. The bolt
carrier is driven back driving the bolt to the rear of the receiver.
The spent cartridge case is extracted and ejected and the whole
process starts over again.
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Loading Single Rounds
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| 1) Pull bolt handle and lock back to rear
of receiver. |
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| 2) Place rounds one at a time from top of
receiver. |
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| 3) Place up to 10 rounds in magazine. |
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Unloading
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| 1) Make sure safety is on and rifle is pointed
in safe direction. |
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| 2) Depress magazine release to rear of magazine
(in front of trigger assembly). |
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| 3) Allow magazine to pivot open. |
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| 4) Allow all unfired cartridges to fall
from receiver. |
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Safety Operation
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Adobe PDF
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TENNESSEE GUN PARTS |
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