Optional aluminum chassis for RTA.
Possibility to add brass inserts (RT090) to adjust the weight distribution.
The chassis weighs 16gr and each brass weight weighs 2.6gr. So you can reach a total weight of 26.4gr.
The original chassis weighs 19gr. So, this option helps you to have a wider range of mass distribution.
The addition / removal of the brass inserts is very quickly using only 2 screws.
The chassis is delivered without brass inserts.