Pretty sure BiMart has the long handled ones. 4 blocks from my house. Not sure if they are long or short bladed.

I also know, I think, know where a brand new stainless steel, long handled, Clam gun is located and for sale.

That is why I try to always call my Clam tubes tubes. I always thought that our old shovels were always Clam guns. I also have several old Tru Temper Clam guns out in the shop.

Some of us old guys never change.

fp