The Proof Research Tundra is a bolt-action rifle chambered in .300 PRC with a 22-inch barrel. The stock is carbon fiber for a lightweight, rigid build, and the rifle is finished in a Green Jungle pattern. It is configured for optics use, with a threaded muzzle and a manual safety. 
 

Key Specifications 

• Brand: Proof Research 
• Model: Tundra 
• Caliber: .300 PRC 
• Action: Bolt Action 
• Barrel Length: 22 in 
• Material: Carbon Fiber 
• Color: Green Jungle 
   

Detailed Features 

• Carbon fiber stock adds strength while cutting weight versus a standard bolt gun. 
• Threaded muzzle accepts suppressors or other muzzle devices. 
• Optics-ready platform built around scope mounting rather than iron sights. 
• Manual safety gives straightforward, simple operation in the field. 
• .300 PRC chambering is built for long-range performance. 
• Overall setup pairs a rigid, lightweight build with a repeatable feeding system.

Shooters looking at the Tundra in .300 PRC point to the carbon fiber stock as the standout feature. It keeps the rifle lighter than a comparable steel-barreled bolt gun without feeling delicate, and the manual safety is described as simple and predictable to run. As with other Tundra variants, the main criticism is price relative to a mass-market bolt rifle.

In the field, the lighter carry weight is a common selling point for hunters covering long distances, and the Green Jungle finish is popular for blending into cover. Since the rifle has no iron sights, most owners treat the optic as a permanent part of the setup rather than something added later.

Aftermarket support leans toward specialty precision-rifle vendors rather than mainstream retailers, which some buyers coming from a typical hunting rifle find limiting. Most people who choose the .300 PRC Tundra already know the segment and are paying for the weight savings and carbon fiber build quality specifically.