No experience with NAA's mini-revolvers. But I do have a pre-'98 Guardian in .32 acp which NAA basically rebuilt for me. Before the rebuild, the little pocket semi-auto was stove-piping all the time. NAA did the work, returned the pistol to me postage-paid with two free mags, and it has worked flawlessly ever since. The list of parts they replaced was over $400. Cost to me? Zero $. My point is that NAA has, as far as I'm concerned, an absolutely top-rate service department!