It's good for the price - Mission First Tactical Tekko Metal AR Carbine 7in Drop In Rail System

Its the cheapest but best drop in quadrail on the market I would say, I bought the quadrail version. Better than a UTG, less than a Troy or Midwest industries, I've owned all of them at one point or another. It's the middle ground option and the price is right in the middle. If you want the best, buy the Troy but also be prepared to pay nearly double. If you wanna pay just a little more and gain a little more, buy the midwest industries. Dont expect to mount anything to this and retain zero, so poor choice for IR devices. Flashlights, tape switches, grips are all good to go but it has a lot of play, and that's to be expected out of a drop in system. That also has a lot to do with what kind of upper you put it on too, on my BCM it was okay, on my PSA slop city. Has QD cutouts, they work. All in all, happy with the purchase. You could probably just buy the magpul polymer drop in handguards and be just fine and save weight, they are nice especially for 30 dollars, but these look cooler... so theres that.