Magpul M-LOK Rail
What People are saying about the Magpul M-LOK Rail:
The Magpul M Lok rail is a good, easy solution for adding accessories to the standard fore-end.
High-quality accessory for Magpul products. Magpul makes excellent accessories for firearms and related products. It is made in the USA.
The Magpul M Lok rails are functionally nice for lightweight accessories, but I've found m-lok is certainly not the end-all "quick-installation" system. There are better systems out there, I won't mention names, but the locking tabs on the inside are a bit of a pain to get to turn properly when tightening. Also, most Magpul m-Lok handguards are plastic, and overtightening can easily damage them, and I can easily see any accessory hanging off of handguards ripping this tiny lock right out of the guard.