OK, so this was a great stock.
Until it broke.
One night I was playing around with my M4 and when I extended the stock the part you squeeze to extend/retract the stock ( Does it have a proper name? ) snapped in half and fell to the ground.
I don't think I was too rough with it or anything, and the part may have just been a piece of crap or something, but I dunno.
I do know that once I get another stock it won't be this one just in case they're poor quality in general. ( Which I doubt, Echo 1 is usually pretty good quality in my experince. )
Actually subtracts a minor amount of weight from your M4 if you have a Retractable stock.
Makes your M4/M16 Look less "Same-y"
Can be tough to fold/ unfold at first.
It's not the most comfortable stock in the world.
Mine broke, though I may have been unlucky.
If you don't have a skeleton stock already, you may have to modify your gun some to get this to fit.
Rating: [4 of 5 Stars!]