Instruction Manual

DETAILED CLEANING TECHNIQUES…

Pg. 30

CLEANING THE UPPER RECEIVER…CLEANING THE UPPER RECEIVER…

NOTE: Check to ensure that there is no looseness between the Barrel and the Upper Receiver - if you detect

any movement by twisting with your hands, the Barrel Nut must be retorqued. Bring the Rifle to your

Gunsmith.

Using a “CLP“ type product, clean all areas (inside and out) of Powder Fouling, Corrosion and Dirt.

Never

use a wire brush or any type of abrasive to clean the Aluminum Upper Receiver - you'll scratch and

damage the finish. A Toothbrush is good for loosening any dirt buildup, and won’t scratch the Receiver.

Clean the Firing Chamber - dip

the larger Chamber Brush in CLP

and use at least 5 plunge strokes

and 3 - 360° clockwise rotations.

Then swab out the Bore as described previously

to remove contaminated solution or loosened crud.

Use the Bore Brush - wet with CLP - to clean carbon and powder residue

from around the Gas Tube. Run a Pipe Cleaner into the Gas Tube, clean

the Bolt Locking Lugs, Bolt Rings, Firing Pin, Bolt Cam Pin, lip of the

Extractor, and inside the Bolt Carrier from both front and rear.

Wipe all components clean and dry, and inspect

for excessive wear, corrosion or mechanical

damage. Have your Gunsmith replace any worn or

defective parts before firing again (or contact

Bushmaster at 1-800-998-7928 for parts needs.)

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