The PPQ in .45 fits the hand quite well, with the grip being very form-fitting as Walther is getting rather famous for in their handgun design. With a twelve round magazine capacity it is thinner in the hand than a Glock 21SF. For some reason, the Walther grip design on al of their PPQ/PPS/P99 models just fit in my hand rather perfectly.
The trigger was like any other PPQ - which was very nice indeed, very smooth for a striker fired pistol and better than any Glock trigger I've tried.
The PPS M2 is the same slim form factor as the M1, but with a standard push button magazine release compared to the paddle release of the M1 model.
They also have the PK/S now in .22LR which was getting a fair amout of attention from the attendees. James Bond can still draw in the crowds for the venerable PPK and its variants.
Walther certainly is offering a very nice line of products for the US Market. I expect the PPQ in .45 ACP will draw quite a bit of attention, and it fills a cartridge gap in the Walther line to meet the demand of those who demand a .45.
