Tried to check the gap but could only find my metric feeler gauges 0.05mm = 0.0019" the gap is less than this, the gun is very quite and the pellet count is 130 and still counting, 100bar still on gauge so I assume that the gap is OK, I will carry on counting shots until performance drops off just to see how far it will go not that it matters as I will only be shooting in my workshop at 10 meters so can refill as required.
Ref the back sight I took a photo to show what I mean but I don't seam to be able to insert a photo in this post? do you know what I have to do?
Really impressed with this gun makes you wonder why they stopped making it, never shot a full match pistol couldn't afford one if I did, and the Rohm is already 5 times better than me so no point in spending all that money