Instruction manual

DISASSEMBLY

1. Remove the magazine. Draw the bolt fully rearward and visually inspect the

chamber to be certain there is no cartridge in it and then release the bolt.

Place the safety in the “off” (F) position. Point the pistol in a safe direction

and pull the trigger, to be sure hammer has fallen. Hammer must be

uncocked before pistol can be disassembled.

2. Insert a blunt, ‘pointed’ instrument in the oval recess of the mainspring

housing (at the back of the grip) and swing the housing latch open like the

blade of a pocket knife. (Some users find that a paper clip, looped over the

latch, is an ideal ‘instrument’ for this phase of disassembly.)

3. Swing the entire housing outward on its pivot and pull downward, removing

mainspring housing and bolt stop pin. With new pistols it may be necessary

to lightly tap (with a plastic hammer) on the top portion of the bolt stop

pin—which protrudes above the receiver—while pulling downward on the

mainspring housing.

4. Point muzzle up. The bolt will drop out of the receiver or it can readily be

removed.

5. With the mainspring housing, bolt stop pin (as an assembly), and bolt

removed, a forward blow (with a plastic hammer) on the rear of the receiver

will disengage the barrel-receiver assembly from the grip frame. No attempt

should be made to remove rivets or staked pins. Further disassembly should

be undertaken only by the factory.

REASSEMBLY

(The procedure is the same for all Ruger MKII pistols)

1. Be certain pistol is free of

cartridges! Safety must be in the “off”

(F) position.

2. Place hammer in horizontal

(cocked) position. Keep finger off

trigger.

3. Place barrel receiver on top of

frame so that the square lug engages

the square front recess on the

underside of the receiver (See Figure

3A).

Push barrel rearward until it stops,

with the rear end of receiver slightly

over-hanging the rear end of the grip

frame (see Figure 3B). If alignment

cannot be achieved by hand pressure,

strike the muzzle (front) of the barrel

with a plastic or wood mallet only

being careful not to damage the

muzzle.