telescopic sights?
Printable View
Is the cat top right?
Found it, black and white. Tick one thing to do on a sicky.
The side expansion chambers will be to accommodate the blast of the cannon's muzzle brake.
I know what you are thinking: "WTF!".It was build to reduce noise to communities nearby. The vehicle pictured is the M109G 155mm self-propelled howitzer.
Many thanks to Sven for emailing it to me.
UPDATE: Thanks to Mark for these images of another German tank suppressor.
Regards Philip A