I stopped by my local WalMart store this afternoon to pick up some CO2 and saw what I thought was a 1377 in a blister pack. The price was right, so I brought it home only to discover that it was in fact a new model from Crosman, the PC77, Pumpmaster Classic. Although it has the outward appearance of the 1377, there are some very interesting differences.
First is the trigger. This model has the new wide blade metal trigger in a black finish. Also missing is the spacer between the barrel and the air tube. But the biggest difference is in the grip frame. This is a totally new design from Crosman and adds a few new challenges for grip makers.
The first change that I noticed was that there are now three screws that attach the side plate to the frame. The plate is now plastic, and the fit to the grip frame is much more precise. It fits totally flush with the frame whereas the older version stood proud of the frame at the top of the trigger guard.
Secondly, the post that holds the sear spring is square rather than round. I havent tried fitting a factory sear spring adjuster, but if the spring fits over the post, more than likely the adjuster will. Add to that the differences in the general geometry of the frame and grip makers now have to make a few changes to get things to fit.
I'm not certain that Crosman will change every model to the new style frame, but I'll have to keep it in mind for my future grip production.
My last observation of this model is that it shoots perfectly at 10 meters, whereas previously purchased 1377s were always shooting high at that range, regardless of how the sights were adjusted.
Success is not an entitlement.