User Guide

Nomenclature
In conventional gun terminology, the
position and movement of gun parts are
described as they occur with the gun
horizontal and in normal firing position; i.e.,
the muzzle is forward or front; butt stock is
rearward or rear; trigger is downward or
underneath; the rib is upward or on top. For
general parts nomenclature refer to Figure
1-A. See Figure 1-B for names of all parts
and assemblies covered in disassembly and
cleaning procedures.
10
General Operating Procedures
The Browning A-5OOG shotgun is a gas-
operated, semi-automatic shotgun. It is
capable of shooting five shots (with the
magazine plug removed) in rapid succession
with each pull of the trigger. The rotary bolt
locks into the barrel with four lugs. Upon
firing, high pressure gas from the barrel
passes through two ports in the barrel,
through the barrel ring guide and into the
gas cylinder. The high pressure gases force
the gas piston rearward, applying pressure
to the sleeve bar assembly. The special gas
FIGURE 1-A