(Detonics length chop job on Colt .22 unit) Sounds like a lot of money, and I wouldn't bother if I couldn't do the work myself, but since it saves 10c a shot over 9mm ammo, and 20c a shot over .45 ammo, and since can always sell it for $600, even to a DEALER, it pays for itself with the first 2000-4000 rds, which is just a few MONTHS of training. It jumps around every bit as much as does a full size and wt 9mm, or a 1911 with the typical wussy loads many use to practice with.