Manual

Rev F www.lmtdefense.com Page

EXTRACTION

As the bolt moves rearward, the extractor which is pinned to the bolt and engaged in the canullar groove of the

empty cartridge, withdraws the cartridge from the chamber.

EJECTION

The empty cartridge which is still held by the extractor (Figure 11 (2)) is withdrawn from the chamber. As the

cartridge clears the barrel extension and inline with the ejection port, the spring on the ejector re-asserts,

forcing the base of the cartridge to rotate about the extractor. The force of the ejector spring re-asserting flicks

the cartridge case out of the ejection port and clear of the weapon

NOTE: The ejection port cover assembly is opened by the bolt carrier acting on its latch housing, whenever

the bolt is moved either forward or rearward.

CHARGING AFTER FIRING

As the carrier group continues rearward, it compresses the return spring and cocks the hammer:

• Repetitive: The hammer is rotated rearwards about its axis and compresses its spring. The

disconnector (Figure 4 (2)) is rotated forward as a consequence of the trigger being pressed. As the

hammer ends its rotation, the hook on the disconnector engages the upper inside hook of the

hammer, holding it to the rear. The bolt carrier group moves forward under influence of the return

spring. When the trigger is released:

1. The trigger spring returns to its home position.

2. The trigger rotates the disconnector rearwards.

3. The trigger sear, located on the front face of the trigger body, moves in front of the hammer.

• The disconnector hook disengages from the hammer as the disconnector rotates rearwards.

Unrestrained, the hammer rotates forward under influence of its spring, and the hammer hook

engages with the hammer sear. The weapon is now ready to fire another shot.

PISTON SYSTEM (SUPPRESSED AND NON-SUPPRESSED MODES)

For the piston system to function in a normal cyclical operation, the piston plug must be positioned to match

the operator’s mission. There are two positions on the piston plug, “FIRE” and “SUPP”. These positions

represent different weapon operational configurations and must be configured to match. For operational

configuration that DOES NOT include a qualified sound suppressor system, the piston must be set so the

inscription of “FIRE” is presented to the top so the operator can view it. If the weapon is to be operated in a

suppressed mode with a qualified sound suppresser, the piston plug must be set so the inscription of “SUPP”

is presented to the top so the operator can view it. To set the piston plug to match the operation configuration,

depress the plunger (Figure 7C (1)) while rotating the plug (Figure 7C (2)) counter clockwise from the direction

of the breech for “FIRE” and clockwise for “SUPP”, until the plug is in the position wanted by the operator

(approximately 180°).