Sig Sauer ASP P320 CO2 Blowback .177 Caliber Pellet Pistol Table Top Review


Type: Air Pistol.
Manufacturer: Sig Sauer ASP
Model: Sig Sauer ASP P320.
Materials: Metal and plastic build.
Weight: 1.81 pounds (821 Grams).
Barrel: 4.75 inches - Rifled steel.
Propulsion: 12 gram CO2.
Action: Blowback single and double action.
Ammunition Type: .177 caliber pellets and 4.5mm Steel BB's.
Ammunition Capacity: 30 round belt fed stick magazine.
Max FPS: 430.

Trigger Pull: The trigger pull on the Sig Sauer ASP P320 CO2 Blowback .177 Caliber Pellet Pistol is a lot better than I thought it was going to be considering each time you pull the trigger it has to advance the 30 round belt fed magazine and cock the internal hammer since it is double action only. The blowback operation is really only for show and feel since it does not cock the hammer for a more single action type trigger pull. You can expect a fairly long trigger pull because it is double action only but overall it is not too heavy.

Accuracy: I have not done my official Field Test Shooting Video for the Sig Sauer ASP P320 CO2 Blowback .177 Caliber Pellet Pistol but hope to have it done shortly. Since I also haven't really done an official shooting test for the Sig Sauer P350 and P226, I figure I will test out all three of them at the same time.

Build Quality: The Sig Sauer ASP P320 CO2 Blowback .177 Caliber Pellet Pistol is a bit heavier (closer to 2 pounds) than the P250 which hits the scale at only 1.5 pounds , this does make the Sig Sauer P320 feel a bit more solid in the hand. The Sig Sauer P320 has a metal slide and polymer frames similar to the real steel version which gives it authentic weight, balance and handling. Sig claims that their entire APS line of pellet guns is life tested for 15,000 shots so you know this gun is going to last and provide years of shooting fun. The fit and finish seem really good, so far no real paint or finish problems and all mechanically everything is operating as it should.

Realism: The Sig Sauer ASP P320 CO2 Blowback .177 Caliber Pellet Pistol is a very close replica of the real steel Sig Sauer P320. The hammer, slide catch release and take down leaver are purely for show with the hammer being moulded into the slide and frame. One slight disappointment for me is when a gun does not have a cut out ejection port, that is also the case with the otters ASP Sig Sauer airguns like the P226 and P250 but it does not take away from the shooting fun in any way.

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  • Good overall replica of the real steel Sig Sauer P320.

  • Designed by Sig Sauer and made in Japan, fully Sig Sauer licensed.

  • Should have nice heavy blowback operation like the ASP P250 and P226.

  • Has better weight than the P250, almost half a pound heavier.

  • White dot sights for easy target acquisition and accessory rail for add ons.

  • Super high capacity 30 round belt feed magazine.

  • Decent feel to the trigger not heavy or as sticky as I thought it might be having a 30 round belt fed magazine.


  • Hammer is moulded into the slide and frame, does not function at all.

  • Sight are non adjustable.

  • Ejection port is not cut out and there is no working slide catch.

I was happy when Sig Sauer released their ASP Sig P250 and P226 CO2 Blowback Pellet Pistols with their 16 round double sided stick magazines like we have seen in several otters CO2 Pellet Pistols. But I love the introduction of the 30 round belt fed magazine. I am hoping the belt fed magazine performs while actually shooting pellets as good as it feels when dry firing it, I guess we will have to wait and see when I do my Field Test Shooting Video :) Overall the new Sig Sauer ASP P320 Pellet Pistol looks to be an upgrade of sure to the P250 in terms of improved weight and a higher capacity magazine.

My YouTube Table Top  Review of the Sig Sauer ASP P320 CO2 Blowback .177 Caliber Pellet Pistol:

4.5mm / .177 cal, BB, Blowback, CO2, Comparison, Pellet, Pistol, Review, Semi Auto, YouTube Video Sig Sauer ASP, Sig Sauer P320