Tommy 2000 - 2005. Early models have 15 inch barrels. Later ones 13 inch LW barrels. Later models around late 2002 were short stroked. Cylinder is the same length as a Venom Mach 1 hence the FAC rating

Longbow 2003 - 2005. All fitted with 13 inch LW barrels. Cylinder is shorter hence sub 12 ft lbs.

Brum models are stamped Made in Birmingham Turkey ones are stamped TK on the breech block. Try and find a Brum one as far better than the Turkey version.
Mach 1.5