First of all, you need to understand that tuning will very much depend on the goals. Beginners usually consider tuning as an increase in their combat capability. That is, as an alternative to training with firearms. Well, like I bought a tactical grip and got +30 to speed and accuracy. That is, if a dangerous situation suddenly arises, then the carbine will practically jump into your hands and aim at the enemy. No, it won't hover and it won't jump. And no body kit will help this if you do not periodically shoot.