Instruction Manual

Pg. 32
CLEANING THE UPPER RECEIVER…CLEANING THE UPPER RECEIVER… (Continued)
NOTE: The design of the Ejector makes its disassembly for
cleaning somewhat impractical (i.e. we don't recommend
it). Make sure your Bushmaster ejects empty cases
efficiently by following these steps on a monthly basis
(more frequently if firing blanks).
1. With the Bolt removed from the Bolt Carrier and the
Extractor installed,
hold it as shown, and dribble a few
drops of CLP around the Ejector to form a puddle.
2. Take
a fired or dummy case and place it under the lip of the
Extractor. With a rocking motion, press the case down against the
Ejector. Since the Ejector is spring loaded, some resistance will be
felt. Press on the case until it stops against the bolt face. Ease off
with your thumb slightly and press down again. Repeat several
times. Replace the CLP frequently. Once the spring action of the
Ejector is smooth and strong, dry off any excess lubricant.
EJECTOR
EXTRACTOR
ROCK EMPTY CASE AGAINST
EJECTOR TO LUBRICATE
3. CHECK THE EXTRACTOR AND EXTRACTOR SPRING: If the Extractor is
chipped, or has broken edges in the area of the lip that engages the cartridge rim, it
should be replaced. Check that the rubber insert is inside the Extractor Spring.
Clean off any Carbon buildup or powder residue.
Cleaning / Lubricating the Ejector…
Cleaning the Bolt, Bolt Carrier & Components…
CLEANING THE UPPER RECEIVER…
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