Is the s&w optics ready ar15 any good? I'm looking for accuracy at long range foremost. I have heard these lowers don't fit well with other uppers. I would eventually look into getting a .22lr conversion kit/upper for it. Thanks.
Spikes Tactical makes a really nice .22 AR-15 upper that should go right on the S&W lower. They work best with a notched hammer. I'm not sure which type S&W produces on their guns. Bill T.
The S&W M&P-15 "OR" models are no different from any of the other rifles in the M&P-15 family as far as the lowers are concerned, so I'm not sure what those folks were talking about.
Not sure what kind of accuracy you are looking for, your skill level, or what kind of distance you're referring to. Although some talk of 5-600 yard accuracy with an AR type rifle, probably the 3-400 yard range is more realistic for most of us with a 16 inch tube. Anything much over that and I believe you're talking about a different type of AR animal optics, and ammunition.