The Furyan from Lost Vape is a nice and hard hitting 21700 BF mech mod. Fire button has a really nice throw and the locking system works fine. The whole mod fits nice in the hand and with 288,53 gr. incl. the Drop bf-rda and 21700 batt. it feels just right. I love the Amber/Brass version and with the gold Drop rda it matches really well.