Walther Rotex RM8 Synthetic Regulated Bolt Action PCP Air Rifle by UMAREX

The Walther Rotex RM8 has earned its reputation by focusing on the parts that matter most. At its heart is the same proven German-made action found across the RM8 range, pairing a genuine Lothar Walther barrel with one of the best rotary magazine systems available. The result is an air rifle capable of exceptional consistency, whether you're punching paper on the range or controlling pests from a static position.
 
Unlike many self-indexing magazines that rely on spring tension, the RM8 uses a true rotary magazine. Every time the bolt is cycled, the rifle itself rotates the magazine into position before the pellet is chambered. This allows the pellet to travel into the breech in a straight line rather than being forced through whilst the magazine is still turning, reducing the chance of pellet damage and helping maintain excellent accuracy.
 
German Lothar Walther Barrel: The 500mm genuine Lothar Walther 12-groove choked barrel is one of the biggest reasons the RM8 has become so well respected. Renowned worldwide for producing exceptionally accurate barrels, it provides the foundation for the rifle's outstanding precision.
 
Regulated Performance: The regulated 200cc air cylinder delivers its most consistent performance between 200 and 100 BAR. The regulator helps maintain stable velocities throughout its working pressure while also increasing the usable shot count compared to similarly sized unregulated rifles.
 
Rotary Magazine System: The RM8's 8-shot rotary magazine remains one of the nicest systems to use. Because the rifle rotates the magazine during the cocking cycle instead of relying on spring-loaded indexing, pellets are presented cleanly to the breech for smooth, straight chambering.
 
Hard-Wearing Synthetic Thumbhole Stock: This version replaces the traditional timber stock with a robust synthetic thumbhole design. The thumbhole grip provides a comfortable wrist position during longer shooting sessions, while the synthetic construction is far better suited to working rifles that spend their lives in fields, barns and pickup trucks rather than inside a cabinet.
 
Integrated Picatinny Accessory Rail: Unlike the beech version, the synthetic model includes a Picatinny accessory rail beneath the forend. This makes fitting bipods, torches and other accessories simple without the need for aftermarket adaptors, making it particularly appealing for professional pest controllers.
 
Ready for Your Choice of Moderator: The precision barrel is threaded 1/2" UNF, allowing you to fit the moderator that best suits your shooting without being tied to proprietary accessories.
 
Specifications
Action: Right Handed Bolt Action
Power Source: PCP
Air Cylinder: 200cc
Maximum Fill Pressure: 232 BAR
Regulator Operating Pressure: 100-200 BAR
Approximate Shot Count: 160 Shots
Magazine: 8 Shot Rotary Magazine
Safety: Automatic Push Button
Trigger: 2 Stage Adjustable (First Stage Length)
Barrel: 500mm Lothar Walther 12-Groove Choked Barrel
Muzzle Thread: 1/2" UNF
Power: Approx. 15.5 Joules (Pellet Dependent)
Stock: Synthetic Thumbhole
Weight: 4.2kg
Overall Length: 1000mm
Optics Rail: 11mm Dovetail
Accessory Rail: Picatinny
 
Who is the RM8 Synthetic for?
If the Beech model is the traditional sporting rifle, the Synthetic RM8 is the working gun. Its weather-resistant stock, thumbhole grip and integrated Picatinny rail make it particularly well suited to professional pest control, especially from hides or static shooting positions where a bipod or other accessories can be fully utilised. It is just as capable on the target range, but its tougher furniture makes it the version you'll worry least about when the weather inevitably decides you're shooting in Britain.