Ruger MINI-14 - Manual (Page 25)

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Removal of the gas block assembly is not necessary and is not advisable. The gas
block assembly is factory fitted using special fixtures and torque tools.
Attempting to fit the gas block assembly without the required special equipment
can result in damage to the components and malfunctioning of the rifle.
Further disassembly of the RUGER ® MINI-14 ® RIFLE is not required for
normal cleaning purposes and should only be performed by a trained armorer
who is experienced in firearms repair.
REASSEMBLY
Again, Be Sure Rifle and Magazine are Completely Unloaded!
1. Reassembly of bolt into receiver:
a. Bolt can be reinserted by holding it at approximately a 45o angle to the
receiver, with the rear end of the bolt angling downward. Insert the tail of
the firing pin through the slot in the receiver bridge, and “wiggle” the bolt
until its rear end moves back into the receiver. Then, push it forward to its
closed and locked position. It should rotate and move freely into place.
b. If you have removed the bolt stop (step 9, p. 25) reinsert the bolt lock
plunger and spring into its hole in the top of the receiver. Depress the
plunger until the rectangular cut in its side lines up with the round hole
seen inside the receiver on the left side.
CAUTION! Plunger will now be
under spring tension and could cause injury if suddenly released. While
holding the plunger against its spring in this position, insert the bolt stop
until its rectangular “tab” goes into the rectangular cut on the bolt lock
plunger. Sliding the bolt lock cover plate upward (prying it upward slightly
with a screwdriver if necessary) completes reassembly of the bolt lock. Note
that the large inverted triangular protection on the cover plate goes on the
outside of the rifle.
2. Reinstalling remaining parts of barrel/receiver group:
a. Retract bolt. Replace operating slide by angling the handle portion upward
between the handguard and receiver ring; then lower the slide so that the
cam track on the inside of the rod fits over the roller on the right locking
lug of the bolt, and the tab adjacent to the slide handle goes into its track on
the right side of the receiver.
b. Push operating rod fully forward. Be sure that the gas piston fits into the
hole in the front of the slide.
c. Hold action upside down as show in Figure 11b, p. 24. Carefully insert recoil
spring into hole in rear of slide, and compress the recoil spring until the
end of the guide rod can be reinserted into the small hole in the front of the
receiver.
CAUTION! The recoil spring will be strongly compressed during this step and can
fly out with considerable force, possibly resulting in injury. Keep it under your
control and proceed with care.