towards the front of handle 22 of pistol 18 39 as shown in fig6 referring now to fig7 release lever 12 39 has a generally flat planar body portion 63 39 with projecting wing portions 64 39 which will project past the width of rectangular opening 44 39 preferably body portion 63 39 is thicker than wing portion 64 39 and has a width slightly less than the width of rectangular opening 44 39 so as to slide vertically within the slot with wing portions 64 39 acting as guides an arm 58 39 projects forwardly from the upper end 12a 39 of release lever 12 39 and has a thumb rest 60 39 projecting outwardly therefrom through a notch 62 39 formed in grip panel 14 39 notch 62 39 has an upper edge 62a 39 and a lower edge 62b 39 which serve as stops for movement of thumb rest 60 39 upwardly and downwardly interiorly mounted upper and lower wing portions 78 and 80 respectively will abut the interior of the pistol grip frame 24 with wing portions 64 39 abutting the exterior so as to guide release lever 12 39 along rectangular opening 44 39 because rectangular opening 44 39 is located more forwardly on handle 22 than the previous embodiment the modified magazine catch 16 39 has a lever 72 39 which is oriented generally parallel to slot 44 39 rather than transversely and below the slot as shown in the previous embodiment the upper edge 72a 39 of lever 72 39 is oriented so as to contact the lower edge 80a of lower wing 80 and is preferably formed with a slight angle to assist in.