This is anICS Sig 552 Commando.
I run this gun with an AIM Sports package. It includes a Red Dot Warefare Edition, a 180 lumen tactical fore grip and flash/strobe light, and a lens protector.
I would love to, in the future, get a lighter spring for this gun to make it comply with milsim rifleman standards. I would also like to add a tight bore barrel and anything to improve durability and performance from there (mosfet, new shims, the like.)
Ranges were taken with a range finder, fps was estimated based on lister performance and Coke bottle test.
I hope to have images up soon, this is my baby! XD