The AI top cover forend is an addition to the ai chassis which encloses the whole forend.
The modular top cover is picatinny rail compatible with either a short picatinny rail which cover 50% of the top or our AI full length picatinny rail which covers the whole top cover.
This part is delivered raw, the reason behind this is that AI has vast variation in colors used from chassis to chassis.
and therefore, the chassis turns out best if you get your new parts color matched at your local paint shop.