and left bearing cams 21 22 trigger 17 also has a trigger extension 23 for pivotable connection with trigger bar 24 trigger bar 24 rotates about trigger 17 through pin 26 right frame recess 14 includes a mount bearing upstanding surface 14a and a generally horizontal surface 14b likewise left frame recess 16 has upstanding surface 16a and horizontal surface 16b also shown in fig1 3 are slide stop 27 including slide stop pivot axis 28 and slide latch piece 29 stop pivot axis 28 is rotatably mounted in frame openings 28a and 28b and serves to confine and control bearing cams 21 22 movement cams 21 22 are normally biased against surfaces 14a 14b 16a 16b but when forces such as the operators manipulation of the firearm cause the trigger 17 to move forward pivot axis 28 limits such movement plunger channel 31 in left side frame section 16 carries trigger bar plunger 32 and plunger spring 33 which bear against the trigger bar 24 to urge it into various positions as described below turning to fig2 and 3 barrel 36 including barrel support section 37 are mounted for rotation about barrel pivot 38 through barrel link 39 turning to fig6 and 7 slide 41 includes firing pin recess 42 and firing pin 43 slide return spring 46 and trigger guard 47 are also shown after the trigger 17 is pulled back to fire causing the pistol to discharge slide 41 and barrel 36 disengage and the slide then moves rearwardly allowing barrel support section 37 to rotate about pivot 38 as link 39 rotates about slide pivot pin 28 in the direction of arrow a fig7 trigger 17 as mounted for rotation does not interfere with the recoil and return of.