Diana Stormrider Gen 2 Air Rifle Features .22 and .177. Doesn't have .177 barrel. 

• PCP
• Bolt-action
• Repeater
• Up to 26 FPE in .22 / 20 FPE in .177 with lead pellets
• Up to 900 fps in .22 / 1050 fps in .177 with lead pellets
• Manual safety
• Two-stage, adjustable trigger breaks at ~3 lbs
• Checkered beech stock
• Raised cheek piece for right-handed shooters (stock still usable for left-handed shooters)
• Fully adjustable rear sight
• 11mm dovetail
• Integrated manometer (pressure gauge)
• 200 BAR/2900 psi fill pressure
• 9 shot magazine in .177 / 7 in .22
• Includes fill probe with male quick disconnect fitting
• Includes rotary magazine and single-shot tray

Many upgrades-

.177 breach with bolt ($35)

carbon fiber barrel split over and barrel straps ($30)

upgraded aftermarket suppressor($25) , 

upgraded additional pressure gauge($30)

3-9x32 optima scope ($75) ,

aftermarket high end European air tank filler probe ($40)

speed loader($35)

comes with over 1000 premier hollow point pellets .22 ($25)

$300 in afterparked parts alone 

with original box and manuals.