I have recently purchased a new Walther LGU and was not that impress with the supposed accuracy. Only getting 35mm groups and 25m. Everything looks fine on the rifle but the trigger was a like squeezing a dog shit. Decided to replace std trigger with a Bruno Silva setback trigger and all I can say is the rifle has been transformed. Pellet on pellet at 25m . Very happy now. I can recommend this mod to anybody with an LGU or LGV having problems with the trigger.
Bruno trigger fitted std trigger below.