The TandemKross "Maximus" Plus1 Follower is a drop-in upgrade to make your gun competition ready! The "Maximus" Plus1 Follower allows the user to load 11 rounds into a standard 10-round magazine - ideal for rimfire competitions, which allow the shooter to start with 11 rounds. The follower is made of durable Zytel and is bright red, improving safety by showing the shooter when the magazine is empty. This is a simple, drop-in upgrade and does not require any special tools to install. FeaturesIncrease your magazine capacity by oneRed color shows when magazine is empty, improves safetyMade from Zytel for long-lasting durability