Arcturus Mod1 Adjustable Carbine Stock for M4/M16 Series AEGs
(Color: Black)

"I couldn't have dreamed up a better stock. If you want something that looks awesome (it's right at home on my Krytac Vector - it's a must-have for any kind of sci-fi build), is very comfortable, and has an incredible amount of battery space for stick and nunchuck batteries, they don't make 'em better than this.

The only big sin with this product is the fact that the stock didn't come with any sort of instructions for how to open up the back of the stock, or how to actually fit it onto a buffer tube - to do the former, you just twist the circle on the back about 90 degrees and then pull the top of the stock back (it doesn't pull off all the way; the back plate hinges on the bottom of the stock), and for the latter, when you pull the adjustment lever, this little bit sticks out of the bottom of the "slope" at the bottom - run a very thin hex key through it and pull down, and that'll do the trick.

It would've been ideal if that was listed on the product page or included in some kind of manual, but even despite that, I would wholeheartedly recommend this stock.

"I’ve tried so many m4 stocks, and this is 1000% the best.
The size profile to battery space ratio is INSANE.

"I got this to fit bigger batteries and have easier access to my batteries. Glad to say it 100% worked and better than I thought. Even all my buddies are going to buy it because of how much room and time it saves on the field.