Sheridan grip frames / receivers for Sheridan PGP, PMI1, PMI LB, SB, and many other pump paintball pistols and some airgun pistols (EB Pistol).
The Sheridan and Crosman parts number for frames and other small parts are:
EB17-007 grip frame
HB17-011 sear
105-039 detent ball
HB17-016 safety
HB17-048 safety spring
HB17-039 frame screw
HB17-019 Grip Screw
HB17-010 sear spring
HB17-012 Sleeve, Sear Pin
HB17-014 trigger pin
HB17-015 sear pin