The new Sidewing from Beez Combat Systems (BCS) allows users to convert compact chest rigs like the Spiritus Systems Mk4 and similar into larger, full-sized chest rigs.
![](https://jerkingthetrigger.com/wp-content/uploads/2020/11/122978266_3395476623903478_6972685857752883215_o-1024x1024.jpg)
The Sidewing is available in two sizes. The S2 version adds two laser cut PALS columns per side while the larger S3 adds 3 columns. The S2 and S3 are constructed from BCS’ laser cut GRID material. They come with all the buckles necessary to adapt the Spiritus Systems Mk4 harness to the Sidewing.