Some have and some do not , push out the trigger blade axis pin and if its adjustable there will be a small hexagon grub screw i think its 1.5mm on the top of the blade. Dont try to unscrew it without heating it up a bit to melt the lock tight, you unscrew it to reduce sear engagement with some good moly grease you can get the triggers to work well . The only problem is due to you cutting down the travel on the blade the safety catch becomes inoperative, if it do not have the screw i dont think you will be able to drill and tap it as been harden.
.22 Venom Mach 1 (FAC) 6-25x56 Millett.
.22 Venom Mach 2 Thumbhole 6.5-20x40 Leupold EFR.
.22 Venom Mach 2 Sporter 4-12x40 Leupold.
.177 Venom Vantage 4-16x50.
.177 Venom Daystate 8-32x56 AGS.
.22 Venom Datstate 4-16x56 AGS.
.22 Webley Venom FX2000 6-18x40 Busnel Legend.
.177 Titan MPT by Steve Pope 6-24x40 Tasco.
.177 Pro-Sport 4-16x50.
.22 Webley FX2000 3-9x33 Leupold EFR.
.177 Logan Solo 4-16x50.
.22 HW90 (spring powered) 4-16x50
.22 Gamo Stutzen.
.177 Walther lever action.