If your Pocket Police is like any other Uberti Pocket Model (1849, Wells Fargo, 1862 Police and Navy) the spinning of the cylinder will be small potatoes compared to the other problems you will encounter. Unless they have gotten better, you will be buying replacement nipples and installing a heavier mainspring to make your revolver function. Cap jams with the stock factory gun are an every shot occurrence. As I said, it can be mitigated with aftermarket parts. But for what they sell for, it should be more than a "gun kit" that you gotta tweak and spend money on to make it function somewhat reliably. Wish I had known how bad they were before I purchased mine. My first was a 1849 Pocket, thought I just got a lemon. My second, a 1862 Police, also came from Midway, and was even worse than the Pocket Model. I was talked into buying a third, a 1862 Pocket Navy, by the guy at my LGS. He assured me his guns were of higher quality than the ones sold by the big distributors. He said those were made cheaply to sell at a certain price, but the ones he sold had better QC. I got took again. I still have all three, and they are somewhat reliable now, but only after spending a lot more money on an already expensive gun. My full size revolvers, of which I have many, I run stock, and am very pleased with them, whether Pietta or Uberti.