Like I said, i wasn't in peshawar when the m15 and m13 Frankenstein combo was done. I was told the setup had not worked and when I returned, we went out to shoba to find a either a clean m13 or m15. We however found the m18 from a half cut. The power was one major factor and since it was a half cut, everyone concerned had no second thoughts about it. I wish we still had it. That liana was a wolf in sheeps clothing after the swap.