(57) Based on a trigger plate (1) equipped with means for mounting upon it the firing
mechanism proper, comprising the rocker (4) of the breech block, the hammers (8),
the hammer rocker (9), the spring (10), the top cap (11) for the said spring, the
trigger rocker (12) and the counterweight (13), it is characterised in the fact that
the said trigger plate (1) has at its forward end a latch (14) which interlocks with
the forward end of the housing recess in the stock of the gun for the said firing
mechanism, while at its posterior end and substantially recessed it incorporates a
locking catch (16), which can be retracted against the tension of a spring (17), by
acting on an external button (23), a catch which can be engaged in a complementary
housing in the said recess in the stock of the gun, all such that the trigger plate
(1) and the firing mechanism as a whole associated therewith is engaged in the recess
in the stock of the gun by simple pressure and can be removed without anything more
than pressing the said button (23) which is protected beneath a posterior extension
(24) of the trigger guard (2) protecting the trigger (3).
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