B+T has already cracked the code on an enhanced pistol to bridge the PDW gap, with their Universal Service Weapon. Their P320 USW grip module (~$350 CAD - Wolverine Supplies) converts the SIG P320/M17 handgun to PDW format with a Glock version soon to follow. The B+T minimalist approach is far more advantageous IMHO than the "sexy" but bulky and heavier Flux design. It works excellent with the P320 X5 with its enhanced trigger and target bull-barrel, allowing easy gong hits at 50-75m and centre-of-mass hits out to 1oom and beyond.