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Sig Sauer MCX .177 Co2 Powered SIG20R Red Dot Air Rifle

Sig Sauer MCX .177 Co2 Powered SIG20R Red Dot Air Rifle (click to enlarge)

Looking for the perfect air rifle does not have to be a daunting task as long as you know the basics. When it comes to pieces, you must first know what you need. Do you want to purchase a model that’s perfect for hunting birds or small game? Are you a hunting enthusiast or you just want to perfect your shots?

Once your needs are clear, choosing the perfect air rifle for you won’t pose a problem anymore because you now have a particular model in mind. The Sig Sauer MCX Air Rifle is one of the pieces in the market, which can be used for plinking, and target practice so if you’re into those interests, read on for more information below.

Click here to buy now or to see the price of the Sig Sauer MCX .177 SIG20R Red Dot Air Rifle. 


The model is available in .177 caliber and two color options. It’s a semi-automatic air gun, which includes a tough synthetic stock and a rifled steel barrel, built-in Picatinny Optics rail plus accessories ad a Tactical Foregrip.

Specifications are as follows:

  • .177 caliber
  • 750 fps
  • Semiautomatic
  • 30-magazine capacity
  • CO2 mechanism
  • 4 medium-high loudness
  • 7-inches barrel length
  • 7 inches overall length
  • Rifled barrel
  • Flip-up front and rear sights
  • Picatinny rail/mounts
  • 1-year limited warranty


Sig Sauer is popular with firearm enthusiasts because of their exceptionally crafted weapons. Their expertise and innovation can be found on all of their pieces, including their line of airguns. The company’s firearms have been endorsed by plenty of military and law enforcement personnel from all over the world.

The firm currently calls Newington, New Hampshire home and manages over 900 employees in their fold. Sig Sauer branched out into the airgun market to provide those versions for their gear thus the business was introduced to technology such as the RPM (Rapid Pellet Magazine) Drive System, a first from the company and featured on the MCX Air Rifle.

The air gun’s RPM Drive System is capable of doing 30 rounds within 3.5 seconds and is life-tested for a guaranteed 15,000 of shots. Other than its Picatinny Optics rail and accessories rail, tactical foregrip and 20-mm SIG 20R Red Dot Optic, it has a velocity of 750 fps for a .177 caliber model. This air gun also features a strong and tough metal housing and added reinforcements on all seals to guarantee longer life and usage.

Check out the Sig Sauer MCX .177 SIG20R Red Dot Air Rifle in more detail below. Click any of the pictures below to enlarge.

Sig Sauer MCX .177 Co2 Powered SIG20R Red Dot Air Rifle - Flat Dark Earth color Sig Sauer MCX .177 Co2 Powered SIG20R Red Dot Air Rifle - detail of grip and magazine Sig Sauer MCX .177 Co2 Powered SIG20R Red Dot Air Rifle - Detail of magazine


The model is relatively new so there were only a few scattered reviews for it. So far, on several reviews people who have purchased the model said the Sig Sauer air gun was impressively built and will look awesome on a showcase for an airgun enthusiast’s collection.


One user commented that the airgun was some kind of a failure, its setback being that the 10 for 10 tape only came up with 397 fps. It was below the company’s claims of 750 fps, which according to the buyer, suspected it was defective. The buyer then credited the setback to manufacturing glitches so he asked for a replacement from the company.

Final Verdict

Click here to buy now or to see the price of the Sig Sauer MCX .177 SIG20R Red Dot Air Rifle. 

Sig Sauer is a trusted name when it comes to weapons and armaments, and their MCX Air Rifle is yet to be tested by many. Choosing an air rifle is more often than not a personal preference so what others will find faulty in one model, some will regard it as perfect and worked decently enough to meet their standards.

As for the model, you can look at the specifications and if the features caught your fancy, you might have to try it out yourself and see what the Sig Sauer MCX Air Rifle can really offer in reality. It may just be the what you have been waiting for to accompany you on your next target practice.