I have both pistols.
This is a Gamo PR-15
http://sports.webshots.com/photo/255...F?vhost=sports
This is a Gamo Compact
http://sports.webshots.com/photo/268...q?vhost=sports
The PR-15 is a nice pistol, it also shoots bb's. I would say the Compact is the better pistol, very accurate and nice to shoot.