PR

Proof Research

Columbia Falls, MT, United States

WeaponsDual-use
Founded 201251-200 employeesComponent SupplierSupplies Defense Industry
Profile last updated: April 13, 2026

About

Founded in 2012, Proof Research is a defense component supplier based in Columbia Falls, United States working in weapons.

Proof Research is a Columbia Falls, Montana company founded in 2012. Its firearms division makes match-grade carbon fiber and stainless steel rifle barrels and barrel blanks, sold mainly to shooters, competitors and gunsmiths through dealers. Its Advanced Composites Division, based in Dayton, Ohio, develops and supplies high-temperature polyimide, bismaleimide and epoxy prepregs, resins and structural adhesives for commercial and military aerospace and defense industries, including programmes such as the F-35 Joint Strike Fighter and the B-2 Stealth Bomber. The company also offers R&D support and outsourced development for composite materials.

Location

Columbia Falls, United States

Founded

2012

Employees

51-200

Focus areas

barrelscarbon fibercompositesprepregshigh-temperature resinsstructural adhesivesaerospacedefensefirearms components

Languages

EN

Products & capabilities

Defense domains

Weapons

Supply-chain role

Component Supplier

What they offer

ComponentsHardwareEngineering Services

Markets

Also sells to civilian markets

Products

P2SI DS77 Film Adhesive

Structural adhesive

Addition-cure polyimide structural film adhesive with 500-580F service temperature and 620F-700F cure range.

P2SI T3 RTM Resin

Resin system

Low-cost, high-performance resin system for vacuum-assisted resin transfer molding, cured as low as 600F.

P2SI 700LM RTM Resin

Resin system

Resin transfer molding system rated up to 700F for high-temperature structural composites.

P2SI 900HT Prepreg

Prepreg

High-temperature structural polyimide prepreg with service up to 1500F and good dielectric properties.

P2SI NRPE 550 Prepreg

Prepreg

Structural thermosetting polyimide prepreg with low-melt viscosity for 550F-600F service temperatures.

End users

Defense Industry

Standards, platforms & customers

Platforms & programmes

F-35 Joint Strike FighterB-2 Stealth Bomber

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