Make sure to watch my YouTube video for this Comparison Review as I go into a lot of detail about the similarities and difference with each of these CO2 Blowback Pellet Guns.
Here are some of the main Similarities when comparing the Sig Sauer P250 & P226 - Umarex PX4 Storm - Gamo P25 & MP9:
-All of these CO2 blowback pellet guns are made for each company in Japan (I am assuming from the same factory?)
-All of the listed Pellet Airguns shoot .177 caliber pellets (Can be Alloy or Lead)
-They all have double sided rotary stick magazines that hold 8 rounds on each end for a total of 16 shots per magazine.
-All of the Airguns use 12 gram CO2.
-All compared pellet guns have Blowback operation.
-All of these pellet pistols have single and double action triggers except for the Gamo MP9 which is single action only and needs to be charged on the first shot.