First off, we always monitor our sales with various products to try and make sure we can acquire products that are highly sought after and one that has been hard to stock are the Advantage Arms Caliber conversion kits.   Now that Generation 4 Glocks are on the market, we are running into a lot of holster fit problems and not all of the grips, accessories and parts for other Generations of Glocks fit the same caliber or Model numbers.   A Glock generation 4 isn’t going to fit some of the standard Fobus holsters and you’ll have to get the E2 Fobus holsters.   With these Advantage Arms 22 Caliber conversion kits, you gotta watch which kit you purchase because there are a lot of people with Generation 4 handguns buying the older Glock Conversion kits.

If you purchase these kits, the slide you get will be much lighter weight, but ammunition selection is critical to running the gun reliable.  For some reason people always leave ammunition selections out when testing a guns accuracy and reliability.   Glock Caliber conversion kits from Advantage Arms come with 1 pistol mag so trying to acquire magazines is a whole other race.   The reason to switch to one of these kits is to save money on your shooting hobbies or to improve you trigger control and disciplines.  There are other caliber conversion kits out there but they do not have a very good reputation.   There are kits for the Springfield XD, Sig Sauer and 1911 22LR conversion kits.