UPDATE: All Umarex Glock 17 Gen 4 and Glock 19 Gen 3 GBB Airsoft Pistols now ship with the Shorter Barrels!!
In this Field Test Shooting Video I test out the Umarex Glock 17 Gen 4 GBB Airsoft Pistol in the Replica Airguns Indoor Sean Airgun Shooting range. This product now comes with the longer sticking out barrel to increase the FPS for import into Canada to get it up and over the 360 FPS requirement using a .20 gram Airsoft BB. In my previous video I test out the Umarex Glock 19 Gen 3 GBB Airsoft Pistol but swapped out the longer barrel for the shorter barrel to see how much the sorter barrel reduces velocity and also if there is an impact on accuracy? Make sure to watch that video to get the scoop on the shorter barrel with both the Umarex Glock 17 dam Glock 19 GBB Airsoft Pistols
For the velocity portion of this test I placed several .25 gram Airsoft BB’s through my Chronograph and was please to get a very consistent 355 average FPS reading which is very close to the claimed 360 FPS when using .20 gram Airsoft BB’s so if I had been using a lighter BB I would have for sure seen velocity up and over the 360 FPS.
In terms of accuracy the Umarex Glock 17 Gen 4 GBB Airsoft Pistol also performed really well, maybe not as well as the short barrel Glock 19 Gen 3 I tested just last week that seemed to group just a little bit tighter and was a little bit more well vented on the target. Both the Glock 17 and Glock 19 shot a bit low but I am sure a slight hop-up tweak could rectify that. I did however manage to get around a 2 - 2.5 inch 10 shot grouping.
So in summary both the Umarex Glock 17 Gen 4 and Glock 19 Gen 3 GBB Airsoft Pistols at least for now come with the longer barrels only and so you options are to either cut down the existing barrel or buy a shorter barrel and replace it, that is unless you like the look of the long sticking out barrel ;) You will get a velocity drop of around 75 FPS with the shorter barrel installed but I would say accuracy should be about the same at the end of the day.