Seeing that you posted here in the M&P15 section, you might check out
this one.
Used plenty of inexpensive optics over the years, including Barska. Considered to be near the bottom of the totem pole by most everyone, the 2 or 3 I still have around work great.
That being said, I really like Burris glass. Only purchase 30mm tube scopes anymore myself.
I have a couple of old Bushnell Banner Trophy Sportview BDC and Tasco 3-9x that I've used to take the most game. It's not the gear but the skill of the person behind the trigger.
Don't overlook turkey scopes like the Nikon. Barska might even have one in the 1.5-6x range. Nice compromise.