Proof Research CZ 455, 457 Carbon Fiber Prefit Barrel 22 Long Rifle 18.5" Stainless Bull Contour 1:16" Twist 4 Groove

Proof Research's Carbon Fiber Barrel manufacturing process begins with full-profile, match-grade 416R stainless steel barrel blanks that are then turned down to a significantly reduced profile greatly reducing weight. This reduced contour barrel is then wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin developed by Proof's advanced composites division, PROOF Research ACD. The aerospace-grade carbon fiber used has a specific strength up to 30 tim