Two of those grips also come with built-in beavertails. The real difference between the Gen4 and Gen5 is the finger grooves, which appear on the Gen4 but not the 5. Texture. The texture on the Glock 19 is going to vary, again, based on generation. Height: 5.4″ Width: 1.18″ Barrel: 4.5″ Glock 22 Gen 3 (Photo: Gunprime) The full-size Glock 22 was made to fill the gap between.45 and 9mm. Because of its usefulness and reliability, many police and government agencies adopted this model as their service pistol. Its larger size means there’s a lot to hold onto and that helps temper recoil. The dimensions of the same model in the Gen 4 and 5 are nearly the same. The exception is in the overall width. Using the popular Glock 19 as an example, the Gen 4 overall width is 1.26 inches. The Gen 5 is 1.34 inches. It doesn’t seem like much. Rocks. Introducing the Gen5 family which includes 9x19, .40 S&W, 10MM AUTO, and .45 AUTO models. Gen5 pistols feature over 20 design modifications from their Gen4 predecessors, including the GLOCK Marksman Barrel, nDLC finish, ambidextrous slide stop lever, the removal of finger grooves and a flared mag-well. It depends on your size! Avg or smaller body size, the g19 conceals easier. Avg or smaller hand size the g19 is comfortable in the hand and you can use flush or extended mags. Large body is easier to conceal a larger g45. Large hands and you may find the g45 gives you a better grip. Glock 17 vs 19 Differences. The main difference when comparing the Glock 17 vs 19 is that the G17 is longer, has a longer barrel, and is taller. The size difference between the two pistols affects concealability, comfort, and accuracy. Concealability. As a 5' 9" guy, the Glock 19 is one of the largest pistols I'd consider for concealed carry. Are you not sure what the differences are between a Glock that says Gen 5 on the slide and one that says Gen 4 on its slide? Let us try to help you understa The Glock 19 defined an entire generation of pistols as the standard-bearer for what a compact pistol should be. It’s small enough to be carried concealed but big enough to be a duty or home defense pistol. Glock 19 Gen 5. New generations have seen a rail for lights and a cut for optics. MKTrA5V.