If you are going to go with Magpul, consider their MLOK forend instead of MOE. They look almost identical, except for the subtle difference in slots. MOE is at an evolutionary dead end. More MLOK accessories are available, and from aftermarket too.
Going further, if you want a Magpul MOE buttstock for a Sport II, spend a few more dollars and get the CTR version. While similar, the CTR has a lock on it and fits tighter on the Sport II buffer tube, resulting in a lot less wobble. I took my MOE buttstock off my Sport II and replaced it with a CTR. Big difference. The MOE is going onto another gun. Be sure to order milspec for the Sport II, not commercial.