cfbackrow
NES Member
Hi I have a new Gen 4 glock 19 and I purchased some low caliber marked square notch prebans (2) here is my issue...no matter how many rounds I load into either mag...the last round doesn't fire and the slide doesn't complety cycle..leaving a loose round that falls out when I eject the mag...I'm thinking I might need new springs...any other thoughts? Thanks in advance