To get this achievement you have to Level up a Palico Gadget all the way to max level. I started with the Vigorwasp Spray as that's what you get in the beginning and didn't change it until I maxed the level. As you play quests/investigations you gather experience towards you Palico. Once you level up the weapon to level 10 the cheevo will pop.
To check which Gadget you are using you can go to your room or campsite tent and hit change Palico Equipment. Under the armor will be which gadget you are using. you can also look at the level that it currently is at.