Manual

14 15
5.2. OPERATION
When the trigger is pulled, the firing pin strikes the primer of the cartridge,
resulting in the rifle firing. Gases from the fired cartridge travel down the
barrel with some diverted into the gas regulator. The gases impart energy
onto the short stroke gas piston, pushing it to the rear. The gas piston
contacts the front of the bolt carrier moving it to the rear. During the
rearward movement of the bolt, the empty cartridge case is ejected out of
the ejection port. If there is a cartridge in the magazine, the bolt then
returns forward by the force of the recoil spring, picks up a cartridge from
the magazine and loads it into the chamber, ready to be fired. If there is not
a cartridge in the magazine during this movement, the bolt release engages
and the bolt remains locked in the rearmost, open position.
With cartridges in the magazine and chamber, and the “safety” selector in
the off safe position, the rifle will fire a single round with each successive
pull of the trigger until the magazine and chamber are empty. When the
last round has been fired, the bolt will lock in the rearmost, open position.
This allows fast, convenient reloading.
6. NOMENCLATURE
In conventional firearm terminology the position and movement of parts are
described as they occur with the firearm horizontal and in normal firing
position; i.e., the muzzle is forward or in front; the buttstock is rearward or
to the rear; the trigger is downward or underneath; the barrel is upward or
on top. For general parts nomenclature, refer to Figures 1 and 2.
7. SERIAL NUMBER
The serial number is located on the left side of the receiver, just below the
upper rail. Record the serial number at the front of this owner’s manual for
future reference.
8. INITIAL CLEANING
WEAR EYE PROTECTION WHEN ASSEMBLING AND
DISASSEMBLING YOUR RIFLE TO PREVENT SPRINGS,
SPRING-LOADED PARTS, SOLVENTS OR OTHER AGENTS
FROM CONTACTING YOUR EYES, RESULTING IN INJURY.
Various exposed metal parts of this rifle have been coated at the factory
with a rust preventative compound. Before using the rifle, clean the
anti-rust compound from the inside of the barrel, receiver, bolt and the
action/chamber areas with CLP (cleaner, lubricant, protectant) as explained
in Section 20.1.
If your rifle is to be stored, it is acceptable to leave the rust preventative
compound on the rifle and keep it in its original packaging. Never fire the
rifle upon purchase without cleaning it first. If the rifle contains hardened
grease or other substances that you cannot remove, have the rifle checked
by your dealer or departmental armorer. For law enforcement and military
personnel, refer to the procedures of your department.
9. OPERATION OF THE “SAFETY” SELECTOR
ALWAYS KEEP THE “SAFETY” SELECTOR IN THE ON SAFE
POSITION UNLESS SHOOTING IS IMMINENT. ALWAYS KEEP
THE MUZZLE POINTED IN A SAFE DIRECTION. FAILURE TO
FOLLOW THESE WARNINGS COULD RESULT IN SERIOUS
INJURY OR DEATH.
SCAR rifles utilize an ambidextrous “safety” selector located on the
trigger module just rearward and above the trigger. This location allows
the “safety” selector to be easily manipulated with the thumb of the
firing hand.