Trolling through the net...I think it is a good thing to read up on the Panther turret..so wallah!
From Wikipedia....yeah trolling made simple!
From 1943, Panther turrets were mounted in fixed fortifications, some were normal production models, but most were made specifically for the task, with additional roof armor to withstand artillery. Two types of turret emplacements were used; (Pantherturm III - Betonsockel — concrete base) and (Pantherturm I - Stahluntersatz — steel sub-base). They housed ammunition storage and fighting compartment along with crew quarters. A total of 182 of these were installed in the fortifications of the Atlantic Wall and West Wall, 48 in the Gothic Line and Hitler Line, 36 on the Eastern Front, and 2 for training and experimentation, for a total of 268 installations by March 1945. They proved to be costly to attack, and difficult to destroy.