this flange this causes the cartridge to shift upwardly against the bias of cartridge spring 11 ejection of the cartridge assembly 29 and cartridge spring 11 is prevented by main slide 35 that is installed perpendicular to the axis of the two concentric cylinders 5 and 12 the main slide 35 is contained in a slot formed by assembly of the lower body 5 and upper body 31 the two parts are held together by two grooved pins 6 pressed into holes cut through the two protrusions extending outward on the lower body 5 these grooved pins 6 extend through the cross section of the upper body 31 the clip assembly 34 is manufactured by brazing the right angle sections 32 to the clip body 33 a complete clip assembly 34 is inserted into the upper body 31 by pushing the assembly downward causing deflection of the integral cantilever spring formed from the two parallel grooves on the rearward portion of the clip body 33 and sliding the clip forward so the right angle sections 32 rest in the space formed by the circumferential groove cut into the grooved pins 6 the clip body 33 will sit adjacent to the raised flange that skirts the perimeter of the upper body 31 when assembled allowing the cantilever spring formed by the parallel grooves on the rearward portion of the clip body 33 to return to the flat position when the clip has moved forward of the two raised protrusions on the edge of the upper body 31 this feature ensures the clip assembly 34 will remain in position positively locking the lower body 5 upper body 31 grooved pins 6 clip assembly 34 and interior parts together the main slide 35 is inserted through the.