BudsGunShop.com - Barrel Threads

Kevin - Per teh Walther Web site: This pistol comes from the factory with "8X.075 Metric threads" - you will need an adapter (which can be found at the following link) to adapt the barrel to 1/2"X28 threads. Adapter comes with a thread protector. opticsplanet.com/walther-threaded-p22-barrel-adapter.html Buds normally carries the adapters, but is out of stock. This pistol is not 1/2X28 threaded from the factory.

it is a "8X.075 Metric threads" but it comes with a 1/2x28 adapter included see *****UPC:
723364206993
Description:
WAI PPQM2T 22LR PST 12R 4.6 TB
Brand:
Walther Arms Inc
Model:
PPQ M2 .22 Tactical
Type:
Pistol: Semi-Auto
Caliber:
22LR
Finish:
Black
Action:
Double Action Only
Stock:
Black Polymer Frame
Sight:
FT: Polymer RR: Click Adjustable
Barrel Length:
4.6 Threaded Barrel
Weight:
19.1 oz
Capacity:
12+1
# of Mags:
1
Safety:
Firing Pin Safety, Trigger Safety
Receiver:
Black Polymer, Picatinny Rail
Features:
Loaded Chamber Indicator, Reversible Button Mag Rel;
Anodized Aluminum Slide,********** Thread Adapter to 1/2X28

Kevin, thread pitch is 1/2x28 TPI Sir. No adapter needed for 1/2x28 Suppressor/