Sig Sauer P250 & P226 - Umarex PX4 Storm - Gamo P25 & MP9 Comparison

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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.
  • They all have rifled barrels.

Here is where we find some key differences between these CO2 Blowback Pellet Pistols:

The FPS Velocity for each Airgun: 

The weight of Each Pellet Gun:

The Barrel Length for each Air Pistol:

The Main Build Materials for each Pellet Pistol:

Is the Ejection Port Cut Out? 

Is it a Replica of a Real Steel Gun? 

4.5mm / .177 cal, Blowback, CO2, Comparison, Pellet, Pistol, Review, Semi Auto, YouTube Video Gamo, P-25, PT-85, PX4 Storm, Sig Sauer, Sig Sauer P226, Sig Sauer P250, Umarex