This is our recommended competitor to the KRAL PUNCHER SUPER JUMBO;

• TURKISH WALLNUT stock, large thumbhole stock w/ better handle ergonomy. Fills to 250 BAR @ 500cc as well, also comes prepacked in a hardshell carry case.
  
• The MX9 packs 54 Joules of muzzle energy, whilst the SUPER JUMBO only 44 Joules.
  
• The SUPER JUMBO weighs in 4 KG's, the MX9 only 3.75 KG.
  
• The MX9 features a regulator & fill guage, the SUPER JUMBO only a fill guage.
• Both feature a 12 shot magazine and comes w/ 2x.
• The decisive factor here is that, the MX9 features a regulator / is regulated, unlike the SUPER JUMBO.

Here’s a table with the specifications for the ASELKON MX9 PCP rifle in .22 caliber:

Included Accessories:

• 2x 12-round magazines
• Filling probe, 1/8' NPT male threaded 
• Spare O-rings set
• PCP rifle oil in nozzle dispenser, 90ml bottle
• User manual
• Female Q/C, male 1/8' NPT threaded
• Some allen keys for self-help purposes.
• Polymer barrel band

Please have a look here;

Also;