I had one, swapped it out for a McMillan A5 which was my plan from the start. The M40 wasn't bad, had a aluminum block, felt solid, fit and finish was fine. Fore end was pretty chunky for my taste. Probably my biggest complaint would be cheek height. I would have needed a riser to run that stock with the optic I had. I think for a cost effective solution they could be a good option for some shooters.