The newest pull-and-release firing triggers are here! You will fire one round per pull action and ANOTHER round per release action. Just like the BFS Bianry trigger on rifles!!! Modular design like your OEM triggers JUST drop in and dump your ammo LIKE full auto! Works with Glock gen3/4/5 and same size P80 frame. Fits:17 19 22 23 26 27 19X 45 47 31 32 and 33 $230 each no matter which generation. Contact Casey at Grenadier Arms Company by text @ 903-931-9981. I’m a certified gunsmith and would be happy to install the trigger in your Glock for $50 in addition to the price of the trigger kit.