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 …

Whether you're a first-time buyer, a seasoned builder, or just trying to keep up with the conversation at your local gun store, the AR-15 world can feel like it has its own language. BCG, FSB, MLOK, NiB, SBR — the abbreviations fly fast and furious. This guide breaks down the most common AR-15 acronyms so you can shop smarter, build better, and talk guns with confidence. First Things First: What Does "AR" Actually Stand For? One of the most common misconceptions in the firearms world is t …