Page 79 - FAT 105 4.17 MOODLE

Figure 3b: Straight blowback pistol.
action. If left untreated, this buildup can
lead to seizure of the action parts and
various malfunctions.
The straight blowback action is one
of the most popular action types, with
some variation being employed by vari-
ous manufacturers. The action is typi-
cally simple and cheap to manufacture
and ammunition is cheap and plentiful,
which makes them a perfect “first gun”
for new shooters. Most of these firearms
are chambered in .22 Long Rifle, one of
the most popular cartridges of all time.
Figure 4: .22 LR conversion kit.
With the popularity of the action and
ammunition, the straight blowback ac-
tion is showing no sign of becoming ob-
solete any time soon.
A “floating chamber” works on the same
principle as the straight blowback ac-
tion, but as an action within an action.
The floating chamber was designed to
convert larger caliber firearms into more
economical, recoil-friendly training tools.
The floating chamber allows the firearm
to operate in basically the same man-
ner, with the only exception being the
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