Gear Buzz: Maklarbak Smart Mag

We ran into these guys at Shot Show, and we’re seriously excited about their product. They make smart magazine followers that lock the bolt open on the second-to-last round so you’ll never have an empty  chamber in your AR. The jury is still still out on if it’s going to catch on, but it’s an interesting concept.

Here’s a video of demonstrating how they work. Is this another geardo gimmick, or did they just reinvent the wheel ?