AirForce - Tex-Rex .457 Caliber Big Bore Air Rifle

Extreme. Precise. Field-Ready.

Overview

Dominate your next big-game pursuit with the all-new Tex-Rex .457 Cal Big Bore Air Rifle, a next-generation hunting platform born from the legendary Texan series. Delivering over 1,000 foot-pounds of energy with the right slug and orifice combination, this beast is built for serious airgun hunters who demand raw stopping power, long-range precision, and rugged reliability—all in a platform engineered, machined, and assembled in the USA.

Whether you're hunting hogs, deer, rams, or exotics, the Tex-Rex .457 Cal Big Bore Air Rifle provides the perfect balance of raw energy and practical versatility. Thanks to its modular tuning options and robust build, it's equally at home in dense brush or open range.

Key Features

• Extreme muzzle energy — over 1,000 FPE using a 400+ grain slug and the 0.040" bias port orifice
• Flat trajectory — fires slugs up to 1,250 FPS for long-range accuracy
• 34" Lothar Walther precision rifled barrel for maximum range and accuracy
• Bias Port Orifice System — interchangeable orifice screws for fine-tuned power and shot count control
• Lightweight 500cc carbon fiber tank, max fill pressure of 4,500 PSI (310 BAR)
• Textured foregrip with integrated M-LOK slots for bipods and slings
• Primary Picatinny scope rail — replaces the former dovetail optic rail for a rigid, modern mounting platform
• Lightweight 7.25 lb (unscoped) build for maneuverability and field durability
  
  

Performance Advantages

• Over 1,000 FPE with the 0.040" bias port orifice and 400+ grain slugs delivers extreme stopping power
• Up to 1,250 FPS supports flat trajectories for long-range accuracy
• Interchangeable bias port orifice screws let you tune power vs. shot count to match your hunting needs
• 34" Lothar Walther barrel maximizes range and precision
• Lightweight carbon fiber tank and 7.25 lb overall weight keep the rifle maneuverable in the field
  
  

Bias Port Orifice Tuning Table

Specifications