Tm 22 pro 18” barrel vs 16”

[u/PermissionSafe2183]

Wondering which one to go with I like the look of the longer hand guard just wondering on the weight they are both listed same at 6lb also might wanna set up a light on the hand guard thinking the 16” version wouldn’t be enough room to mount light and pressure pad

[u/Familiar_Hunter_638]

what are the pros/cons of the 16 vs 18? considering the tm22 for my first firearm