The Western Airguns Rattler .45 Long Strike is a powerhouse semi-automatic PCP air rifle built for shooters who demand extreme performance, rapid follow-up shots, and long-range precision. Designed by Western Airguns, the Long Strike version pushes the limits of big bore airgun capability—delivering unmatched energy and consistency in a refined, modern platform.
At the heart of the Rattler .45 Long Strike is its true semi-automatic action, paired with a rugged titanium 12-shot magazine capable of handling heavy 350-grain slugs. This system allows shooters to send rounds downrange as fast as the trigger can be pulled—producing over 5,200 ft-lbs of total energy per fill for serious impact and performance.
Built for power and precision, the Long Strike features a 36-inch hammer-forged TJ barrel, delivering up to 435 ft-lbs of muzzle energy and sub-inch accuracy at 100 yards with quality ammunition. The extended barrel design maximizes velocity and efficiency, making it ideal for long-range shooting and demanding hunting applications.
The rifle is powered by a 700cc carbon fiber air bottle, providing 12–36 consistent shots per fill depending on power settings. An easy-to-adjust throttle valve system allows shooters to fine-tune velocity and performance on the fly, giving you complete control over your setup.
Designed with versatility in mind, the Rattler Long Strike includes Picatinny rails for optics and accessories, a factory-installed moderator to reduce report, and a robust, ergonomic platform built to handle high-power shooting in the field.
Combining cutting-edge engineering with brutal big bore performance, the Western Airguns Rattler .45 Long Strike sets a new benchmark for semi-automatic air rifles—delivering speed, precision, and raw power in one elite platform.
Type: Pre-charged pneumatic (PCP) big bore air rifle
Action: Semi-automatic (select variants support full-auto in smaller calibers)
Caliber: .45 (11.4 mm)
Barrel: Hammer-forged TJ barrel with internal shroud system
Barrel Length: 36" (914 mm)
Overall Length: 48.5" (1232 mm)
Weight: ~10.5 lbs (4.7 kg)
Air Cylinder: 700 cc carbon fiber bottle
Max Fill Pressure: 300 bar (4,350 psi)
Magazine Capacity: 12-shot titanium magazine
Regulation: Fully adjustable regulator + velocity/throttle control
Velocity: Up to ~550–580 joules / ~435+ ft/lbs (caliber/load dependent)
Shots per Fill: ~12 regulated full-power shots
Energy Output: ~270–435 ft/lbs depending on tuning
Stock: AR-style adjustable tactical chassis
Rail System: Full-length Picatinny top rail + side/bottom accessory rails
Trigger: Match-style adjustable trigger system
Safety: Manual safety system
Features: Extended Long Strike barrel system, high-capacity plenum, suppressor-ready shroud, highly adjustable power tuning, modular AR platform design
* Scope & mount not included
The Western Airguns Rattler .45 Long Strike is a powerhouse semi-automatic PCP air rifle built for shooters who demand extreme performance, rapid follow-up shots, and long-range precision. Designed by Western Airguns, the Long Strike version pushes the limits of big bore airgun capability—delivering unmatched energy and consistency in a refined, modern platform.
At the heart of the Rattler .45 Long Strike is its true semi-automatic action, paired with a rugged titanium 12-shot magazine capable of handling heavy 350-grain slugs. This system allows shooters to send rounds downrange as fast as the trigger can be pulled—producing over 5,200 ft-lbs of total energy per fill for serious impact and performance.
Built for power and precision, the Long Strike features a 36-inch hammer-forged TJ barrel, delivering up to 435 ft-lbs of muzzle energy and sub-inch accuracy at 100 yards with quality ammunition. The extended barrel design maximizes velocity and efficiency, making it ideal for long-range shooting and demanding hunting applications.
The rifle is powered by a 700cc carbon fiber air bottle, providing 12–36 consistent shots per fill depending on power settings. An easy-to-adjust throttle valve system allows shooters to fine-tune velocity and performance on the fly, giving you complete control over your setup.
Designed with versatility in mind, the Rattler Long Strike includes Picatinny rails for optics and accessories, a factory-installed moderator to reduce report, and a robust, ergonomic platform built to handle high-power shooting in the field.
Combining cutting-edge engineering with brutal big bore performance, the Western Airguns Rattler .45 Long Strike sets a new benchmark for semi-automatic air rifles—delivering speed, precision, and raw power in one elite platform.
Type: Pre-charged pneumatic (PCP) big bore air rifle
Action: Semi-automatic (select variants support full-auto in smaller calibers)
Caliber: .45 (11.4 mm)
Barrel: Hammer-forged TJ barrel with internal shroud system
Barrel Length: 36" (914 mm)
Overall Length: 48.5" (1232 mm)
Weight: ~10.5 lbs (4.7 kg)
Air Cylinder: 700 cc carbon fiber bottle
Max Fill Pressure: 300 bar (4,350 psi)
Magazine Capacity: 12-shot titanium magazine
Regulation: Fully adjustable regulator + velocity/throttle control
Velocity: Up to ~550–580 joules / ~435+ ft/lbs (caliber/load dependent)
Shots per Fill: ~12 regulated full-power shots
Energy Output: ~270–435 ft/lbs depending on tuning
Stock: AR-style adjustable tactical chassis
Rail System: Full-length Picatinny top rail + side/bottom accessory rails
Trigger: Match-style adjustable trigger system
Safety: Manual safety system
Features: Extended Long Strike barrel system, high-capacity plenum, suppressor-ready shroud, highly adjustable power tuning, modular AR platform design
* Scope & mount not included
