Fort Scott Munitions TUI 5.56x45mm NATO 55gr Solid Copper Spun Rifle Ammo - 20 Rounds

Fort Scott Munitions TUI 5.56x45mm NATO ammunition combines innovative design with solid copper construction for shooters who demand precision and reliable performance. Built on the Tumble Upon Impact (TUI) platform, this 55-grain round is engineered for consistent ballistic behavior and terminal performance across a range of shooting applications—from tactical training to hunting where legal. The solid copper spun construction delivers durability and predictable flight characteristics without the inconsistencies of traditional jacketed designs.

Whether you're running drills at the range, testing your rifle's accuracy, or stocking up for field use, this ammunition provides the consistency that serious shooters expect. Fort Scott Munitions has built a reputation for taking a different approach to ammunition design, and the TUI line reflects that philosophy. Each box contains 20 rounds of uniformly manufactured ammo ready to perform when you need it.

5.56x45mm NATO is the most common modern rifle cartridge in civilian shooting—it pairs with virtually every AR-pattern rifle and many other modern carbines. If you're looking for purpose-built ammunition that steps beyond standard mil-spec loads, the Fort Scott Munitions TUI line deserves consideration. The solid copper construction is worth noting for shooters concerned with range materials or jurisdictions where lead-free ammunition is preferred or required.

Key Features

• Tumble Upon Impact (TUI) design for consistent terminal performance
• Solid copper spun construction for reliability and durability
• 55-grain weight optimized for 5.56x45mm NATO platforms
• 20 rounds per box for convenient portioning and transport
• Compatible with standard 5.56 NATO/.223 Remington chambered rifles

Specifications

Frequently Asked Questions

Will Fort Scott Munitions TUI ammo work in my AR-15?

Yes. This ammunition is chambered in 5.56x45mm NATO, the standard cartridge for AR-15 rifles and other modern tactical carbines. It will function in any rifle properly chambered for 5.56 NATO or .223 Remington.

What makes Tumble Upon Impact (TUI) ammunition different?

Fort Scott Munitions designed the TUI platform to provide consistent and predictable performance upon impact. The solid copper spun bullet construction is part of that philosophy—it delivers performance characteristics distinct from traditional jacketed ammunition.

Is this ammunition lead-free?

Yes. The solid copper spun construction means this ammunition contains no lead, making it suitable for ranges and regions with lead-free ammunition requirements.

How many rounds are in a box?

Each box contains 20 rounds, allowing you to purchase and organize ammunition in convenient quantities for training sessions or field use.