The TandemKross Maximus Plus1 Follower (TandemKross part no. TK05N0281RED1) is a bright red magazine follower built to squeeze one extra round into a standard Ruger Mark-series magazine, sold as a 2-pack. Made from durable Zytel polymer, it’s a favorite among rimfire competitors shooting formats that allow an 11-round start in a 10-round magazine. The red color also does double duty as a visual empty indicator, so you can see at a glance when the magazine has run dry.

Key Specifications

• Adds +1 capacity — loads 11 rounds into a standard 10-round magazine.
• Made from durable Zytel polymer.
• Bright red color clearly signals when the magazine is empty.
• Drop-in installation, no special tools required.
• Compatible with both the factory base pad and TandemKross’s MarkPRO magazine bumper.
• Fits Ruger Mark IV, Mark III, Mark II, and 22/45 pistols.
• Sold as a 2-pack.

Frequently Asked Questions

Does this actually increase magazine capacity? Yes — it lets you load 11 rounds into a standard 10-round Ruger Mark-series magazine, useful for rimfire competition formats that allow an 11-round start.

Why is the follower red? The bright red color makes it easy to see at a glance when the magazine is empty.

How many followers come in this listing? Two — it’s sold as a 2-pack.

Buy the TandemKross Maximus Plus1 Magazine Follower for Ruger Mark Series, Red, 2-Pack

Order the TandemKross Maximus Plus1 Magazine Follower for Ruger Mark Series, Red, 2-Pack from a Lubbock, TX gun shop for fast, reliable shipping. Shop more TANDEM KROSS gear or browse the magazine accessories category at Schaefer Defense.