Crosman Steel Breech on Phase I 1377 American Classic

[mudduck48]

That barrel band is a blue fork. It has been changed out with one that Davio makes. Davio's barrel gives me tighter groups. 

[1377x]

If you want to upgrade the breech to a steel or aluminum you will need the following items
1. Steel breech kit
2. Current style barrel
3. Current style transfer port
The steel breech kit from crosman comes with the bolt you need
Unless the gun is in new condition with box and paperwork it holds no real collector value and it has a brass valve instead of the aluminum one which can corrode and cause problems.
My go to is a phase 2 with all the new style upgrades

[Kilmister]

There are only 2 guys who make those, Michael Chavka and BlueFork



http://www.hpasports.com/pages/product-catalog/Blue_Fork_Designs_Products?previous_url_id=0

Did HPA close the doors? They don't seem to have anything in stock except a few screw sets.