Just a quick note: The fat man needed a forward sling point for the M&P 15-22. Using a sling at the upcoming Appleseed event seems like a must... and I would very much like some training in how to use it properly. The M&P lacked such a device, but having a rail farm as a forearm, adding the mount is a snap. Ordered from Amazon.com, with free shipping no less, this little do-hickey is exactly what's called for. Fitting a 1.5" sling perfectly, with no swinging and rattling hardware hanging off it. Simple, strong, cheap, and does everything it needs to without a fuss. The fat man approves.