Apparently the folks who designed the Radom Vis P35 didn't think one was necessary. It has a decocker on the slide, even though it's a single action gun; a second slide lock in the location of the 1911's manual safety; and a grip safety. That leaves you will two choices of how to carry this with a round in the chamber:
1. Leave the hammer cocked and rely on the grip safety, or
2. Drop the hammer with the decocker and re-cock it when you need to shoot, ala Colt Single Action Army.
The only other option is to leave the chamber empty and rack the slide.