S sniperb8 Joined Feb 22, 2014 Messages 4 Reaction score 0 Dec 29, 2014 #1 Sorry if this has been answered already, did a quick search, but didn't return anything... Does anyone know the factory barrel specs for the M&P .40 and 9mm full size? 4.5" barrels? Thanks!
Sorry if this has been answered already, did a quick search, but didn't return anything... Does anyone know the factory barrel specs for the M&P .40 and 9mm full size? 4.5" barrels? Thanks!
I InigoMontoya Member Joined Apr 28, 2014 Messages 120 Reaction score 39 Dec 29, 2014 #2 Currently production M&P9 uses a 1 in 10 twist rate. Don't know about the M&P40. Sent from my Galaxy Note II
Currently production M&P9 uses a 1 in 10 twist rate. Don't know about the M&P40. Sent from my Galaxy Note II
