If anyone doesn't already know this, the Sheridan EB frames are the same as our old Sheridans (and PPS with Sheridan frames, obviously). Crossman 13xx/22xx frames can be found on some old Brass Eagles (Nightmare, etc.) and on some others. I have a set of walnut
RB Grips on my RTP Viper that were made for a Crossman 2240.