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SIG Sauer MPX CO2 Rifle, Dot Sight, Black

Main Product Rating 4.54.5 (5 reviews) Review, article, latest buzz
SIG Sauer MPX CO2 Rifle, Dot Sight, Black

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Decimate soda cans and shred paper targets with the SIG Sauer MPX!

Based on the gas-operated submachine gun of the same name, this MPX runs on 88 or 90-gram CO2 cartridges to send shots downrange at speeds up to 575 fps. Each MPX includes a 30rd rotary-belt pellet magazine and a rifled barrel to increase the accuracy in fast-paced tactical shooting sessions.

Packed with realistic controls and specs, the MPX exudes all things tactical with its all-metal action, durable polymer stock and forend, and a long Weaver Picatinny rail. The included adjustable flip-up sights are removable, and the rifle really begs for a dot-sight for even faster target acquisition. A tri-rail surrounds the barrel and features a lower rail, and 2 side rails with small Weaver mounts for attaching accessories like flashlights and lasers. Each includes sling mounts for easy carrying to and from the range (sling not included).

If you want a one-of-a-kind fast-paced shooting experience that only SIG Sauer can provide, the MPX is sure to give fans of target shredding hours of backyard shooting fun for years to come.

  • SIG Sauer MPX rifle
  • Uses an 88- or 90-gram CO2 cartridge
  • Semiauto
  • Rifled steel barrel
  • 30rd Roto Belt pellet magazine
  • Adjustable flip-up front sight
  • Adjustable flip-up rear sight
  • Synthetic stock
  • Metal housing
  • Weaver/Picatinny optics rail
  • Weaver/Picatinny accessories rail
  • Manual safety
  • Life-tested with 15,000 shots
  • Includes SIG 20R red dot sight with integral mount
  • Available to US customers exclusively

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SIG Sauer MPX Dot Sight Combo Specs

Max Velocity575 fps
Overall Length25.8"
Suggested forPlinking/Fun
Caliber.177 (4.5mm)
Barrel Length8.0"
Shot Capacity30
Front SightFlip-up, adjustable
Rear SightFlip-up, adjustable
Body TypeRifle
Fixed/adj. powerFixed

SIG Sauer MPX Dot Sight Combo Reviews

Rating 4.54.5 (5 reviews)
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Rating 3.03.0 3.0

Rating 4.04.0 4.0

Rating 4.04.0 4.0

Things I liked:

Well built. I sell engineering plastics for a living. This is metal and Glass filled nylon to be exact.

Things I would have changed:

I guess more rounds on the cartridge. Auto would be really neat.

What others should know:

Don't bother with the Air Venturi HPA system. I spent $150 for the tank and high pressure pump. It's obvious velocity is way down. In theory, a great idea but falls short. 90 gram CO2 tanks ridiculously expensive and the gun will not hold the CO2 for very long..

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Things I liked:

This is very well built. Nice to be able to place a HPA tank on it and shoot all day. Very accurate. Never had a jam.

Things I would have changed:

It would be nice to have a larger magazine as 30 rounds can go quick although this is semi-auto. Make this an auto!!!! That would be sweet

What others should know:

I'm a plinker and have my own 45 foot shooting range in the basement. This fulfills my small collection of air pellet and airsoft rifles. They only gun more fun that this!!! The Lancer M-4 tactical with auto and 300 round magazine... A blast and pretty accurate too with laser sight..

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Things I liked:

Excellent gun to practice marksmanship with- very easy to use(loading, firing,etc), very accurate, and it looks really cool, too. I LOVE this gun! I also have the Sig MCX, but this firearm is even better because of its size. It is also easy to accessorize with all the rails on it. Five stars, definitely.

Things I would have changed:

I would like to see a bigger magazine (40-50 rounds)

What others should know:

Make sure you use the pellet seating tool to avoid pellets falling out of the rotary belt.

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  • Devin from USA asked:

    Nobody has had luck using pointed or domed pellets in this, huh? :-/

    • Richard from USA asked:

      I have the SIG Sauer MCX and the MPX. I am finding that the 30 round magazine in jamming and not cycling correctly in both the MCX and MPX. Has anyone had this issue and found a solution? Thanks

      • Richard from USA answered:

        [More information about my question] The above issues are when I am using the Air Venturi PCP Conversion Kit. I sent both the MCX & MPX to SIG Sauer to have them check them out. SIG Sauer said that they did not find anything wrong with them. They suggested that I stop using them as PCP guns and use the CO2. They say the guns were designed for C02 and not for Air. I would prefer using them as PCP -- has anyone found a solution. (Note: The Umarex / Walther 2-12 gram CO2 Conversion Kit does not fit in the stock of the MPX or MCX. It is too long.)

    • Wayne from USA asked:

      What is the weight with and without sight? Specs do not show

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