FX Leopard Standard 600mm Tube PCP Bullpup Air Rifle
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Of the new Leopard range, the Standard 600 mm Tube feels the most finished — sleek lines, useful rail options and a rear-biased balance that makes it the one we’d pick for serious field work or longer-range sessions. It keeps the compact bullpup layout FX are known for but stretches the capability with a longer 600 mm Superior STX barrel for improved downrange performance.
The Tube version uses an over-barrel air tube with a 54 cc rear power plenum to deliver steady pressure around the barrel for consistent groups. The chassis and forend are designed for modern accessory use (M-LOK + ARCA friendly), so mounting bipods, tripods, weights or other accessories is straightforward and stable — ideal if you like to tune your setup for specific tasks.
Why choose the Standard 600 mm Tube?
Balanced, rear-biased handling: gives a natural feel for supported shooting and bench work.
Longer 600 mm barrel: better ballistic potential and grouping at distance compared with the compact 500 mm version.
Modern mounting options: M-LOK & ARCA compatibility + Picatinny top rail make it very adaptable in the field.
Tunable platform: AMP MKII regulator, Quick-Tune hammer wheel and two-stage match trigger let you refine consistency and shot-to-shot performance.
Key features
600 mm Superior STX smooth-twist barrel for improved long-range potential
Over-barrel air tube with 54 cc rear power plenum for stable pressure delivery
AMP MKII externally adjustable regulator for consistent shot energy
Quick-Tune hammer wheel for easy on-the-fly power changes
Two-stage adjustable match trigger for a crisp, user-set break
High-capacity rotary magazine: 22 shots (.177) / 18 shots (.22)
20 MOA canted Picatinny top rail for extended elevation on long-range optics
Forend mounting: Picatinny under bottle junction, M-LOK friendly and ARCA-attachment ready
FX UG1 ergonomic grip & textured rubber buttpad for control and comfort
Side-lever cocking for quick, positive operation
Specifications
Weight: 3.6 kg
Overall length: 805 mm
Max fill pressure: 230 bar
Air capacity (tube): 260 cc
Power plenum: 54 cc (rear)
Regulator: AMP MKII (externally adjustable)
Barrel: 600 mm Superior STX smooth-twist
Magazine capacity: 22 shots (.177) / 18 shots (.22)
Optic rail: 20 MOA Picatinny (top)
Forend rail: Picatinny (under bottle junction) — M-LOK friendly / ARCA compatible options
Trigger: Two-stage adjustable match trigger
Grip: FX UG1 (AR-15 style)
Safety: Switch style
Cocking: Side lever
Includes
FX Leopard Standard 600 mm Tube Bullpup Air Rifle
1 × multishot rotary magazine
Notes
The Leopard is highly tunable — regulator and hammer adjustments affect shot count and behaviour, and in extreme circumstances can result in damage when done incorrectly. If you’re unsure, consult an experienced tech or manufacturer before making large changes.
