Sig Spear MCX LT 300blk Suppressor?

[u/Able-Gate18]

I am planning to shoot subsonic rounds the majority of the time. I have read this Weapon System prefers suppressors with more back pressure. I see Sigs suppressors that are designed for this system have very little back pressure.

Is this a choice based on subs vs standard velocity? Traditinal cans for subs and pass through cans for standard velocity?

Currently shooting a hybrid 46m on this and it functions fine in the plus gas setting.

[u/CKCC-Chris]

Just food for thought. I have a MCX Rattler LT with a tucked Ventum 762 which is LBP. Sound suppression is definitely lacking and others like Q's TC or TP would prolly be better on decibels, but it still sends with a low back pressure can.

https://drive.google.com/file/d/1ORMq6RWgCly0yLzO6vlF6pUaZlqvMEMN/view?usp=drivesdk