Operations Manual

.223 CALIBER
LUBRICATING
Lower Receiver Group
INSPECT - before assembly
17
INSIDE
LOWER
RECEIVER
EXTENSION
ACTION
SPRING
TAKE DOWN AND PIVOT PINS
GENEROUSLY LUBE
INSIDE PARTS LOWER RECEIVER
BUFFER
WARNING
BOLT - Cracks or fractures,
especially in the cam pin
hole area. Bolts that
contain pits extending into the firing pin
hole need replacing.
FIRING PIN - Replace if it has a bent, cracked or blunted end.
FIRING PIN
RETAINING PIN -
Replace if bent,
broken, or badly
worn.
CAM PIN - Replace
if cracked, chipped
or missing.
EXTRACTOR AND EXTRACTOR SPRING -
Check extractor for chipped or broken
edges in the area of the lip that engages
the cartridge rim.
IF PARTS ARE MISSING
OR DEFECTIVE,
CONTACT DPMS.
DO NOT interchange bolts between rifles
BT-02A
BT-16
BT-17
BT-07
BT-08
BT-14