I have no idea if this is a good deal or not but I just received an email from Grab A Gun advertising the optics ready Shield Plus 30 Super Carry for $299.99.
It's cheap because they're have problems selling that caliber. It's a dying caliber, and I suspect S&W to discontinue it. That's a good price otherwise, but ammo will be harder to find and more expensive over the life of ownership.
I fully expect to see those pistols and the Hi Point 30 SC carbine advertised at $200 or less by CDNN in a few months. 30 SC has bombed badly as a cartridge.