I’ve had 2 stock failures in recent  years and one was my fault for not checking the carbine to make sure it was tight after thousands of rounds of use and the other was during a Carbine course where I showed a student how to clear a malfunction by slamming the butt stock on the ground.  There is a YouTube video of someone hurting their  hand with a CTR stock but there are obvious limites on how much banging around a gun or accessory can take.  When there is a fire and you have to break the glass to get to an axe, you don’t need to hit the glass hard that you break the axe handle and end up with a metal wedge.

I’ve had issues with firearms in the past, usually finicky handguns where I just got tired of the intermittent magazine failure that I just replaced all of the mags springs and recoil springs and was done with it.  If you are looking for gun accessories and not sure what you want, take a serious look at the Magpul accessories for the AR15 rifle and  you’ll probable find what you are looking for.   You can’t beat the MOE stocks and accessories but there are always unique things out there that the major firearm accessory companies don’t have.