RWS/Umarex Synergis TNT Gas Piston .22 – 10-Shot Underlever Air Rifle with Gray All-Weather Stock (2251514 / 723364515149)
The RWS/Umarex Synergis TNT Gas Piston .22 Air Rifle (model 2251514, UPC 723364515149) is a modern, multi-shot underlever air rifle built for shooters who demand power, accuracy, and convenience in one sleek platform. Chambered in .22 caliber and featuring a 10-round rotary magazine, TNT gas piston powerplant, and a rugged gray all-weather synthetic stock, the Synergis is ideal for small game hunting, pest control, backyard plinking, and serious target practice (where safe and legal).
If you’re looking for a hard-hitting .22 air rifle that delivers smooth underlever cocking, repeatable accuracy, and multi-shot capability without constant reloading, the Synergis TNT .22 is a standout choice for both new and experienced airgunners.
Key Features – RWS/Umarex Synergis TNT Gas Piston .22
Caliber: .22
Powerplant: TNT Gas Piston (gas ram)
Action: Underlever, single shot per trigger pull with 10-round rotary magazine
Magazine Capacity: 10 rounds (.22 pellets)
Stock: Gray all-weather synthetic stock
Finish: Matte, low-glare finish for field and backyard use
Sights/Optics: Scope-ready receiver (check configuration for included optic)
Model Number: 2251514
UPC: 723364515149
TNT Gas Piston Power – Smooth, Consistent, and Ready for the Field
At the heart of the Synergis is the TNT gas piston, a gas ram system designed to outperform traditional coiled mainsprings:
Provides a smoother cocking stroke and a cleaner firing cycle with less twang and vibration.
Offers consistent power shot after shot, which helps improve accuracy and repeatability.
Performs more reliably in cold or changing weather, making it great for all-season shooting.
Reduced mechanical fatigue compared to metal springs for long-term durability and less maintenance.
For shooters who value reliability and shooting comfort, the TNT gas piston transforms the Synergis into a refined, modern air rifle platform.
.22 Caliber Performance – Perfect for Small Game & Pest Control
The .22 caliber chambering gives the Synergis added knockdown power over smaller calibers:
Delivers heavier pellet impact, making it well-suited for small game hunting and pest management at appropriate distances.
Still offers excellent accuracy for plinking and target shooting, with more authority on steel spinners and reactive targets.
A great choice for airgunners who want a versatile, all-purpose .22 air rifle for both fun and practical use.
With the right pellets and safe, ethical shot placement, the Synergis .22 can be a capable tool for field work and training.
10-Round Rotary Magazine – Multi-Shot Convenience
One of the Synergis’ most attractive features is its 10-round rotary magazine:
Load ten .22 pellets into the magazine and enjoy quick follow-up shots with each cocking stroke.
Greatly reduces downtime between shots compared to single-shot air rifles.
Perfect for extended plinking sessions, small game opportunities, and target practice, where fast follow-ups matter.
If you’re tired of reloading one pellet at a time, the Synergis’ multi-shot system is a huge boost in usability and enjoyment.
Underlever Design with Fixed Barrel – Built for Accuracy
Instead of a break-barrel design, the Synergis uses an underlever cocking system with a fixed barrel, which is a big advantage for precision:
Fixed barrel construction helps maintain consistent barrel alignment for better accuracy.
Underlever cocking is smooth and consistent, allowing you to develop a steady shooting rhythm.
Ideal for shooters who want a rifle-like feel and dependable point of impact over long shooting sessions.
For airgunners who take accuracy seriously, the underlever/fixed-barrel combo is a proven formula.
Gray All-Weather Synthetic Stock – Tough, Lightweight & Ergonomic
The gray all-weather synthetic stock is designed to handle real-world use and variable conditions:
Weather-resistant synthetic construction won’t warp, swell, or crack due to moisture or temperature changes.
Lightweight design makes the rifle easier to carry and shoulder—great for long days in the field or on the range.
Ergonomic grip and fore-end offer a comfortable, solid hold from standing, kneeling, bench, or prone shooting positions.
Neutral gray tone gives the rifle a clean, modern look that stands out from traditional wood stocks while remaining practical.
For new shooters, youth, and seasoned airgunners alike, this stock delivers durability without the worry that comes with more delicate materials.
Ideal for Backyard Plinking, Small Game & Target Shooting
The RWS/Umarex Synergis TNT Gas Piston .22 is a highly versatile air rifle, ideal for:
Backyard plinking and informal target shooting (where safe and legal, always with a proper backstop).
Small game hunting and pest control at suitable ranges, when used responsibly with appropriate pellet selection.
Skill development and practice, allowing shooters to refine trigger control, follow-through, and precision.
Introducing new shooters to air rifles thanks to its smoother gas piston system and multi-shot magazine.
Always follow local laws and regulations regarding airgun use, and practice safe muzzle discipline and backstop planning.
Easy to Operate & Maintain
The Synergis is built with user-friendliness in mind:
Underlever cocking with a gas piston makes for smooth, consistent operation.
Durable synthetic stock and finished metal surfaces simplify care—just keep it clean, lightly lubricated where recommended, and safely stored.
Routine maintenance is generally limited to barrel cleaning, fastener checks, and pellet selection—no complicated tuning required for most users.
If you want a straightforward air rifle that just works, the Synergis checks all the right boxes.
Why Choose the RWS/Umarex Synergis TNT Gas Piston .22 (2251514)?
.22 caliber power for small game and serious plinking
TNT gas piston for smooth, consistent, and reliable performance
10-shot rotary magazine for fast follow-up shots and less reloading
Underlever fixed-barrel design for enhanced accuracy
Gray all-weather synthetic stock for durability and modern styling
Whether you’re upgrading from a basic break-barrel or looking for a highly capable .22 underlever with multi-shot functionality, the RWS/Umarex Synergis TNT Gas Piston .22 (2251514 / 723364515149) is a powerful, feature-rich air rifle that’s ready for the range, the backyard, and the field.
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