Frequently Asked Questions about the AirForce Tex-Rex Brush Gun
What is the AirForce Tex-Rex Brush Gun? The AirForce Tex-Rex Brush Gun is a compact big-bore pre-charged pneumatic air rifle purpose-built for hunting in dense cover, thick brush, blinds and tight terrain. It combines serious energy delivery with exceptional manoeuvrability thanks to its short 16-inch Lothar Walther barrel, overall length of just 31.5 inches and ready-to-hunt weight of only 6.3 pounds. Precision CNC-machined in Fort Worth, Texas, it sits in the Tex-Rex family of high-performance American-made air rifles and is available in two powerful calibres.
Which calibres are available? Two options are offered: .457 and .510. The .457 version provides a strong balance of velocity and energy, typically delivering around 580+ foot-pounds with heavier slugs. The .510 version prioritises maximum impact and can exceed 700 foot-pounds with heavy 620-grain projectiles. Both share the same compact platform, so handling characteristics remain consistent regardless of the calibre chosen. Selection usually depends on the primary game pursued and preferred projectile weight.
How much power does the AirForce Tex-Rex Brush Gun produce? Power output is impressive for such a short-barrelled platform. In .510 calibre, energy levels of 700+ FPE are achievable with heavy slugs under maximum Bias Port settings. The .457 version produces approximately 580+ FPE under similar conditions. Exact figures vary with projectile weight, Bias Port orifice selection, fill pressure and ambient conditions. Velocities commonly range from the mid-600s to over 900 fps depending on the load and tuning. This places the rifle firmly in the serious big-bore category suitable for ethical harvesting of medium to large game at typical brush-gun distances.
What is the Bias Port system and how does it work? The Bias Port Orifice System is a user-adjustable feature that allows fine-tuning of airflow. Interchangeable port screws (commonly 0.040″ and 0.067″) or an open-port configuration let the shooter prioritise maximum energy, balanced performance or higher shot count. Smaller orifices favour heavy projectiles and peak power for large game, while larger or open settings improve efficiency and deliver more usable shots per fill. This flexibility means one rifle can be optimised for different hunting scenarios without permanent modification.
How many shots can be expected per fill? Shot count depends heavily on the chosen power setting and projectile. When tuned for maximum energy, a small number of full-power shots is typical. When the Bias Port is opened or a larger orifice is used, more shots become available while still maintaining useful hunting energy. The 500cc carbon-fibre tank filled to 4500 PSI (310 Bar) provides the air capacity that supports this versatility. Most users find the platform delivers enough consistent shots for practical field use before a refill is required.
Is the AirForce Tex-Rex Brush Gun FAC-rated? Yes. In the United Kingdom the rifle produces energy levels far above the 12 ft-lbs threshold for unlicensed air weapons, so it requires a Firearms Certificate (FAC). Prospective owners must apply through their local police licensing department, demonstrate a genuine need, and meet all storage and security conditions. In other countries the rifle is generally treated as a high-powered airgun subject to local regulations. Always verify the legal requirements in your jurisdiction before purchasing or using the rifle.
What is the overall size and weight? The AirForce Tex-Rex Brush Gun measures 31.5 inches overall and weighs 6.3 pounds unscoped. The short 16-inch Lothar Walther barrel is the key to its compact profile, making it far more manoeuvrable in thick cover, elevated stands, vehicles and blinds than traditional long-barrelled big-bore air rifles. The carbon-fibre air tank doubles as the buttstock, helping keep the weight low without sacrificing capacity.
What game is the rifle suitable for? The platform is designed for medium to large game at close-to-moderate ranges typical of brush hunting. Common applications include wild hogs, deer-sized animals, predators and other airgun-legal species where decisive terminal performance is required. Ethical shot placement and adherence to local hunting regulations remain essential. The tunable power system allows the energy level to be matched to the specific animal and conditions.
What accessories can be fitted? The rifle is highly modular. A full-length Picatinny rail accepts modern day, night and thermal optics. Upper and lower 11 mm dovetail rails support bipods, lights, lasers and other accessories. The muzzle is threaded M18×1 on applicable configurations, allowing the addition of aftermarket moderators. A manual safety and two-stage trigger come as standard. Many users further customise the platform with aftermarket handguards, cheek risers or specialised mounts while retaining the compact handling that defines the Brush Gun.
Is the AirForce Tex-Rex Brush Gun made in the USA? Yes. Every unit is precision CNC-machined in Fort Worth, Texas. This domestic manufacturing supports consistent quality control and gives owners the confidence that comes with an American-made product backed by a limited lifetime warranty.
What kind of warranty is provided? The AirForce Tex-Rex Brush Gun is covered by a limited lifetime warranty from the manufacturer. This reflects confidence in the design and construction of the platform. Normal wear items and misuse are typically excluded; owners should register the product and retain proof of purchase for any future service needs.
How does the Brush Gun compare with full-size Tex-Rex models? Full-size Tex-Rex rifles feature longer barrels (often 34 inches) and are optimised for longer-range performance and even higher peak energy in some configurations. The Brush Gun deliberately sacrifices some of that barrel length to prioritise manoeuvrability and speed of handling in dense terrain. Energy remains very high for its size, and the same tunable Bias Port technology is retained. Hunters who primarily work in thick cover, blinds or vehicles generally prefer the compact dimensions of the Brush Gun, while those focused on longer open-country shots may favour the full-size variants.
Can the power be reduced for different uses? Yes. By selecting a larger Bias Port orifice or running the system open, energy can be moderated while increasing the number of usable shots. Some owners also experiment with lighter projectiles to further tailor performance. This adjustability makes the rifle more versatile than fixed-power big-bore designs.
What maintenance is required? Routine care includes keeping the rifle clean and dry, inspecting O-rings and seals periodically, and storing it with a residual air charge as recommended by the manufacturer. The high-pressure air system should only be filled with clean, dry air from a suitable compressor or tank. Avoid overfilling beyond the 4500 PSI maximum. Regular visual checks of the barrel, rails and trigger mechanism help ensure continued reliability. Detailed guidance is provided in the owner’s manual.
Is the rifle suitable for new big-bore users? The compact size and manageable weight make it more approachable than many full-length big-bore air rifles. However, the energy levels demand responsible handling, secure storage and a clear understanding of local laws. New users are encouraged to seek proper training, start with careful load development, and always prioritise safety and ethical shot placement.
What fill equipment is needed? A high-pressure air source capable of reaching 4500 PSI is required. Many owners use a dedicated PCP compressor, a large carbon-fibre tank with a suitable regulator, or a combination of both. Quick-connect fittings compatible with the rifle’s fill port simplify the process. Always follow safe filling practices and never exceed the maximum rated pressure.
Can optics and night vision be used effectively? Absolutely. The full-length Picatinny rail provides a stable, continuous mounting surface ideal for conventional scopes, illuminated reticles, night-vision devices and thermal imagers. The short overall length keeps the complete package compact even when a larger optic is fitted, which is particularly useful in blinds and thick cover.
Is a moderator recommended? Many users add an aftermarket moderator to reduce report, especially in areas where noise is a concern. The M18×1 threading on applicable models makes fitting straightforward. A well-chosen moderator can improve shooting comfort and reduce disturbance to surrounding wildlife without significantly affecting the compact handling of the rifle.
Where can the AirForce Tex-Rex Brush Gun be purchased? Authorised AirForce dealers and specialist airgun retailers stock the platform. Availability of specific calibres can vary, so checking current stock with a preferred dealer is advisable. Purchasing through an authorised channel also helps ensure warranty support and access to genuine parts and advice.
What should be considered before buying? Prospective owners should confirm local legal requirements (especially FAC status in the UK), evaluate the primary hunting environment and game species, and decide which calibre best matches their needs. Consideration of optics, moderators and fill equipment completes a practical setup. The compact dimensions, tunable power and American manufacturing make the AirForce Tex-Rex Brush Gun a strong choice for hunters who need serious performance in confined spaces.
These answers cover the most common questions surrounding the AirForce Tex-Rex Brush Gun. The platform continues to attract attention for its ability to deliver big-bore authority in a package that is genuinely practical for real-world brush and close-cover hunting. Responsible ownership, proper training and adherence to all applicable regulations remain essential for safe and ethical use.
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