Manual

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LMT Manufactured MRP™ Weapon System firearms are reliable and safe to use when the firearm safety rules
are followed. There are a number of internal safety mechanisms within the internal mechanism of the firearm
which ensure that the firearm will not discharge unless the trigger of the firearm is pulled. NEVER RELY ON
MECHANICAL FEATURES ALONE. Only your safe gun-handling habits will ensure the safe use of your
firearm. This is your responsibility. That is one reason why it is important to never modify or alter your firearm.
Before you use your firearm, you should be fully familiar with its operations.
Here is a list of basic firearms terminology.
AMMUNITION CENTERFIRE Is described as ammunition which contains the primer in the center of the
base of the case. Among the most common centerfire firearm cartridges are the .204 Ruger, .223, 5.56 NATO,
.243, .260, 6.8 SPC, .308 Win, and 7.62 NATO.
BOLT The mechanism that houses the firing pin, ejector and extractor.
CALIBER The diameter of a bullet, designated in hundredths or thousandths of an inch (.223) or in
millimeters (5.56MM).
CHARGING HANDLE This moves the bolt carrier group which cocks the firearm when preparing to fire or
allows access to the bolt and chamber to verify that the weapon is either loaded or clear of ammunition.
COMPENSATOR This may reduce a portion of the recoil, depending on model and configuration applied to
the weapon as well as suppress muzzle flash.
HANDGUARD This is a protective shield that covers the gas tube and the barrel keeping your hand from the
hot barrel.
LOWER RECEIVER Lower part of the rifle containing the receiver, trigger and associated parts.
RIFLE A weapon that can be fired from the shoulder.
SAFETY SELECTOR LEVER This feature changes the trigger between the safe mode and the firing modes.
UPPER RECEIVER The part of the receiver containing the barrel, sights, bolt and associated parts.
The operation of your firearms will be explained in greater detail in the pages that follow, as well as, a
broader description of key component parts.