I have an "A" series 41 with the 8.375 inch barrel and the muzzle break, the muzzle break can be a pain to clean so I got a false muzzle cap for mine. I have shot many thousands of rounds through this gun and it shoots very well, easily X ring at 25 yards with CCI SV if I point the gun in the right direction. When I was shopping for mine I wanted the 5.5 inch barrel but I did not find one so I bought the longer barrel. I don't think you can go wrong with either.