Mark 1 Round (pack of 10)

The Mark1 is a single-use 40mm chalk round — the ultimate force multiplier for your kit. Engineered for maximum performance, it’s ideal for milsims, scenario play, and standard walk-on games.

Each round features precision-engineered rifling that works seamlessly with the Mark1 shell, eliminating the need for a specialized launcher. This rifling has been rigorously tested to deliver exceptional accuracy and range.

The Mark1’s design balances durability and performance: the reinforced sides withstand handling, while the brittle front is built to shatter on impact from almost any angle.

The chalk fill is a cornstarch-based powder infused with blue food coloring — 100% non-toxic, biodegradable, and UV-sensitive, vanishing within two days under sunlight.

When you need reliability, visibility, and impact, the Mark1 delivers.