If you've shopped for an AR-15 handguard lately, you've probably noticed something: KeyMod options are getting harder to find, and the ones that remain are often sitting in the clearance bin. Meanwhile, M-LOK dominates nearly every new product release. This isn't your imagination. KeyMod really is fading from the market, and there are clear, documented reasons why. A Quick Refresher: What KeyMod Actually Is KeyMod launched in 2012 as a joint effort between VLTOR Weapon Systems and Noveske Riflew …