Page 94 - FAT 105 4.17 MOODLE
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Figure 15a (top) & 15b: Link-type tilting barrel action.
recoil system the barrel only moves a
short distance. The barrel will stop while
the bolt/slide continues rearward, com-
pleting the cycle of operations. The short
recoil system is primarily found with
semi-automatic pistols in calibers .380
ACP and up. The manner in which the barrel and bolt/
slide lock and unlock is the difference
The short recoil system utilizes a moving
between the different types of short recoil
barrel and slide/bolt, as well as an extra systems. Each system has its own advan-
part like a locking block/link to restrain
tages and disadvantages, which is why
the barrel’s movement. During dis- certain types have gained so much popu-
charge, the pressure inside the chamber
larity. These systems include tilting, rotat-
will cause the locking surfaces to hold it ing, roller lock, toggle lock, and inline.
closed until the bullet has exited the bore
and pressure has dropped. The barrel will › Tilting Barrel – The tilting barrel
begin to move backward, driving the bolt action is so named because the rear
with it. The locking block/link will stop (chamber end) of the barrel moves
the barrel’s movement while the bolt/ downward to unlock the chamber. The
slide continues rearward. On its rear- action of the barrel tilting is accom-
ward stroke, the bolt/slide will extract plished in several ways. Some models
and eject the empty case and cock the use pivoting links, others use locking
hammer/striker. On its forward stroke, blocks and lugs, while others are more
the bolt/slide will strip a round from the simple, utilizing a single lug that has
magazine, feed it, and lock the chamber. a track machined into it. All of the
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