Unfortunately lost my glock at a local op (do not recommend passive retention holsters like trex arms ragnarok) These are not leaky and worked perfectly fine the last time I used them. One is a stock mag that came with the gun and the other is compatible but with a slightly lower mag capacity. For your sake I left the bottom cap on the stock mag out of place because you can’t add gas with it on and it’s near impossible to take off. Price + shipping and fees. Paypal only.