A&K Full Size Polymer Stock for M249 MK-II AEG Rifles - Black

"I thought it would be flimsy but I was pleasantly surprised. It doesn't have the metal base plate that the Classic Army fixed stock comes with but it seems quite stable and the plastic feels sturdy.

Additionally, the buttplate slides off to reveal the battery storage, unlike the G&P which appears to have a screw holding the buttplate in. This is good because it makes it extremely easy to access the battery compartment, but bad because the metal stabilizing bar must be folded down to hold the buttplate in place or you will run the risk of losing it in the field. Given that the metal stabilizing bar has no real purpose in airsoft, I think it's an overall positive addition.

One downside is that there are a couple sharp edges at the back of the stock on the buttplate. Not a big deal though and you can just sand them down a bit if you find it annoying.

It does not come with the two mounting bolts/pins, if that's important to you.

I saw a review for the G&P fixed stock that said it would snap or break if hit with enough force. I wouldn't be surprised if that happened to this one eventually but the polymer feels pretty nice so I wouldn't expect it to happen unless I dropped it or something. Also, I paid just under $30 for mine, so if it breaks I'll just buy another one. Overall I'm extremely satisfied.