Swapped the 2.8mm lens on my 2432 with the 4mm lens on my 2032 bullet. The 4mm from the 2032 went just fine onto the 2432, even a bit loose so put a drop of glue on it to make it stay focussed. But putting the 2.8mm from the 2432 onto the 2032 was difficult. The fit was very tight, had to focus...