If you chamber a variety of different (SR25) AR10 calibers, then you know marking your magazines is much like a home improvement project. (There’s usually a lot of paint and tape involved.) But at SENTRY®, we know just how important it is to safely, quickly and efficiently identify ammunition calibers, which is why we pioneered the first-ever colored rifle ammunition identification system — the HexID® Color Identification System. Having the peace of mind that your investment, health and safety are all accounted for using our color-coded magazines that can be changed without tools, and in under 1 min, has changed the industry. We think you’ll want to buy more magazines!