Will not feed with elite force Glock 17 GEN fivePlease do not but this until they make a later model the product was working fine for the first few shots but then it started spraying out all the gas out and froze my inner hammer from my elite force glock 19 and shattered the whole thing in my hand for a product this expensive type really thing it would work but as a kid I now am scared to touch it because u don’t want it to freeze my hand and now my favorite thing in my hole collection is broken and being a kid I have no money to fix it I reached out to them to see what they can do I’ll update when and if they get back to meUpdate:we have been talking for a long time and they never answered any of my wuistions for about 2 month they just said a ton of return junk but it wasn’t what I asked in the end they refused to repair the mag and they also told me to “grow up” when I mention what happendIt's a great Drum Mag my only problem is. It's not firing the rest of the remaining 32 shots. It's like the winding whell is too weak hmm... What the point of putting 100bbs in if 30 is not going to work?Emailed this company to confirm its fit with my son's Glock 18C GBB 3gen. Was told it would. Son opened on xmas and Shazam.....wrong clip! In process of returning! Good luck ?it came with broken valve for green gasI like it very much