1) Make sure your gun has a hold open device, some do not.
2) The hold open is activated by the magazine, make sure the button is not binding on the frame; also a very weak spring could cause the problem.
3) Often the hold open itself is worn
If you could post a clear picture of your gun with the upper receiver off showing the internals of the lower receiver we can help you determine your problem, also a picture of the right side of the frame with magazine in place and grip off could be useful.
Vern
|