One of the baffles in the rifle (end baffle) was different to the rest, supposedly it shouldn't of affected anything but I phoned Jackson Rifles up to confirm how the mod should be seated, and clearance of cap.they stated it should consist of 18 baffles and sent me two new baffles in the post free, which I received next day, 10/10 for customer service .... Also stated when tightening cap, to nip it up further tighten, then give the mod a whack on a wooden bench, with a soft cover like a piece of carpet, then try and tighten a bit more, as baffles might shunt slighty also try and nip up a littl