This was one of the most innovative new items we saw at the SHOT show. After you see how cool it is you wonder why no one had thought of it before. The transparent magazine allows you to see how many rounds you have left in the gun. This product has great potential for 3 gun matches, home defense, and law enforcement. The only downside we could see is that it’s currently only available for the Mossberg 590 Shotguns. It comes in 6+1 and 8+1 configurations. Check out their site