Pistol with optimized chassis anchoring

A pistol comprising:

• a body (2) made from synthetic material having a channel (6) formed inside the body (2), said body (2) including a grip positioned below said channel (6);
• a barrel slide guided in a longitudinal direction of the body (2), said slide comprising a barrel (22) and a breech, the barrel (22) comprising a first unlocking means (24), including at least one ramp (24);
• a trigger mechanism;
• a one-piece chassis (4) having an elongated shape extending longitudinally from a central portion of said body (2) to a rear end of the body (2), ensuring maintenance and/or guiding of moving elements of the trigger mechanism, said chassis (4) further comprising guiding elements for guiding the slide and a second unlocking means (20) comprising an unlocking pin (20), the first (24) and second (20) unlocking means being configured such that the first unlocking means (24) bears, during use, on the second unlocking means (20) to unlock the barrel (22);
• the pistol being such that the channel (6) is designed to removably receive the chassis (4);
• characterized in that the chassis (4) is fastened to the body (2) using a formfitting connection, sliding along a predefined translation direction and an angle between said direction and a tangent to a point of impact on the at least one ramp (24) that impacts the unlocking pin (20) of the second unlocking means (20) at said point during movement toward the rear of the at least one ramp (24), is inclusively between −5° and +5°.