DM4/5
STOLEN FROM MATRIX OWNERS
FRONT OF BOLT AND DOWN BARREL
Replace #013 Inner Top Hat Oring
Could be caused by overpressurizing
FRONT WALL NEAR BOLT
Replace #017 Oring on Inner Front Wall. This oring can be a quad or standard round oring. Make sure there are no scratches on the bolt between the bolt sail and bolt tip.
FRONT WALL AND BODY
Replace the #020 oring on outside of front wall
BACKPLATE - REAR PLUG HOLE
Replace the rear most oring on the tip of the plunger with a #009 or #010 ONLY IF THE #009 DOES NOT SEAL
BOLT DOES NOT SEAL AFTER A #9 AROUND BACK PLUG
Replace #020 oring on rear plug
GRIP FRAME
Replace #015 oring on bolt sail
Replace the #020 oring second from front on beercan.
Replace solenoid gasket.
Make sure eye wire is not pinched under corner of solenoid.
ON/OFF ON FRONT OF BODY
Replace oring that wraps around the body of the on/off with another urethane oring from your oring kit.
If you dont have one then use a #007 or #008 black buena oring. Lube it well and make sure it is almost flush as it wraps around.
Replace the two #012 outer orings.
BETWEEN BODY AND REAR CAP
Replace #020 oring on rear cap
SMALL HOLE UNDER LPR
#015 Oring on LPR body
#006 oring found inside LPR
SOLENOID AREA
Turn On/Off to OFF
If stops, replace on/off oring
If continues
Replace #015 on bolt sail
Replace #020 on bolt cylinder
Solenoid gasket may need to be small amount of lube applied and reseated. BE CAREFUL OF EYE WIRES WHEN REPLACING. SOLENOID EDGES ARE VERY SHARP.
LPR
Replace #015 orings on LPR body
Replace seal retainer #010 oring on adjustment screw
Replace reg seat
