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SIG Sauer MCX

Available in 0.1770.22Pellet firing replica of the Sig Sauer MCX tactical rifles
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  • 0.177
    $185.99
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  • Code: sig-sauer-mcx-air-rifle · · ·
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Train like the pros! The Sig Sauer MCX is a near exact copy of the firearm used by law enforcement and military units around the globe. With similar weight, feel, and controls these make a great way to bring the practice range home. These compact semi-auto rifles feature adjustable flip up sights, Picatinny top and side rails, a mock suppresor, and a 30 round pellet magazine. They are powered by an 88g CO2 tank that fits within the stock. Available in both .177 and .22 caliber, these rifles are ready for action.

  • Calibers: .177 & .22 (Pellet Only)
  • CO2 (88 gr / 90 gr)
  • Semi-auto
  • Metal Housing
  • 30 Round Magazine - Roto Belt Mag (Patented Design)
  • Integral Weaver/Picatinny Optics Rail and Accessory Rail
  • Tactical Foregrip
  • Flip-up Front and rear Sights
  • Adjustable Front Sight
  • Adjustable Rear Sight
  • Life Tested 15,000 Shots (Guaranteed)
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Specs
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Reviews
Summary
SIG Sauer MCX
4.5
28 Reviews
5
75% (21)
4
7% (2)
3
11% (3)
2
7% (2)
1
0% (0)
82% Recommend this product (23 of 28 responses)
By Greg W
California
December 18, 2018
Versatile and Fun to Shoot but has limits
This gun is impressive in appearance, very quiet, and pure fun to shoot. The fact that it can be easily modified to use an air tank makes it particularly versatile and raises the possibility that it could be a short range pest rifle. Paired with a tactical red-dot holographic sight it is a perfect rifle for anyone who wants to do some plinking but has eyesight issues that make open sights problematic (raises hand).
Full disclosure; I only had this rifle for about two weeks before a friend talked me into selling it to him so I did not have a chance to test some of my thoughts about this rifle. I will very likely purchase another one soon; it is that much fun.
In the couple weeks I had the rifle I did not get a chance to test the trigger on my pull scale. I was concerned because I had seen reviews where they said the trigger was pulling in excess of 8 pounds. It might be but oddly it did not feel at all heavy to me for this type of double action trigger (if you didn't already realize it this is not a true semi-auto; it is a double action trigger equipped rifle). It was accurate well within the limits of what I would expect from this design and being CO2 driven (lots of velocity variation with CO2). And again, the darn thing is just plain fun.
I may have missed the information in the manual but I did not see the instructions to use the probe on the little enclosed tool to seat the pellets all the way forward in the belt. In case I didn't miss it and that instruction is missing from the very abbreviated owners manual; lay the belt face down on a flat surface and use the probe or other tool to seat your pellets all the way into the belt. Before I realized this necessity I had jams twice and had to use a rod to push pellets out of the breach. Also well hidden in the instructions is the fact that that little tool is used to adjust elevation on the open sights by screwing the front post in or out. There is no elevation adjustment on the rear sight.
I was concerned over a video review that I saw where the reviewer was reporting velocity up to over 600fps with lead pellets and thought it would make a small critter rifle. I tested it over my chronograph which has been tested against another chrony and established as accurate and the highest velocities I recorded with 7+ grain pellets were in the mid to high 400fps range. Personally, I consider this too low for reliable small game hunting. And unless you have converted to PCP, I would be very concerned about the big drop in velocity in very cold weather. If the hammer spring and valve can handle higher pressures from a regulated air cylinder this could prove to be a great field gun and if I do purchase another one I will definitely try running it with an 1100 or 1200psi tank. That may very well make it a nice little hunter but I have serious doubts about this rifle for hunting with CO2.
Ultimately, in my experience, and that of my buddie who now owns the rifle, a very nice, impressive little rifle at a great price point.
ProsDefinitely high on on the "cool factor" looks. Well balanced and well made. Feels very sturdy in hand. Love the 30 shot capacity of the belts in the mag. Belts load easily into the magazine and function perfectly. Large CO2 cylinder gives you lots of usable shots for plinking. Very quiet / back-yard-friendly. Great adaptability with easy conversion to a PCP cylinder.
ConsManual is thin on detail. Open sights are very rudimentary; would like to see a better quality fiber optic sight assembly. Would definitely be worth a fwe extra dollars. IMO, underpowered for any hunting applications with CO2 (well, maybe rats at short range)
Best UsesPlinking and general target shooting with CO2. Might be a nice small game gun with PCP conversion but the user would need to test velocity to be confident of adequate power.
By PAUL
CA
December 12, 2018
GREAT AND QUIET IN .22CAL.
HAVE HAD TIS FOR ABOUT A YEAR AND A HALF. WHEN I BOUGHT IT, IT WAS OFFFERD IN .177 AND .22 CAL. THE RIFEL IS PRETTY QUIET FOR JUST HAVING A FAKE LOOKING SUPPRESOR, BUT I BOUGHT THE EXTRA MAG AND IT CAME WITH 4 BELTS.
ITS A PAIN TO LOAD,AND YOU NEED TO USE THE SEATING TOOL WORKS GREAT WITH WADCUTERS AND DOMED HP'S,VERY ACCURATE. PUT A GREEN DOT CROSS HAIRS 3-9X30 BUSHNEEL SCOPE WITH ILLUMINATION. ACCUERATE OUT TO 30 YARDS WITH THE 11.2 GRAIN RWS HOLLOW POINTS. THEY DUE MAKE A SUPPRESOR WITH THE BARREL. THEN YOUR LOOKING AT ANOTHER $125.00. IT IS IN THE DECIBEL RANGE OF ABOUT 89 DECBL'S!VERY BACK YARD FRIENDLY AND WITH THE WADDCUTERS I TOOK OUT A OPOSSUM AT ABOUT 30 FEET. HEAD SHOT AND IT WAS VERY HUMAINE KILL. I BOUGHT THE TANK SO I CAN FILL IT WITH MY PCP 90 CUBIC INCH TANK, OR HAND PUMP.
ProsFUN TO SHOOT, TRIGGER ON MINE WAS AROUND 4.85LBS. ACCURATE AND IN 22CAL, VERY QUIET. YOU CAN BUY THE TANK WITH THE BUT STOCK AND USE IT LIKE A PCP RIFLE.
ConsLOADING THE PELLETS INTO THE BELTS IN THE RIGHT DIRECTION AND FEEDING THE BELT INTO THE MAG. KIND OF PAIN, BUT GET THE EXTRA MAG WITH BELTS.
Best UsesTARGET SHOOTING, TRAINING AND VERMIN CONTROL.
By Wayne G Bergevin
NV
July 10, 2018
This is an awsome air rifle
This air rifle is very accurate and has passed every test my dad and myself have put it through. Performance has exceeded in every aspect my dad and myself highly recommend this co2 air rifle.
ProsOne Awsome air fifle
Best UsesTarget practices
By Adam
MA
March 23, 2018
For what it is, it's worth it.
Decent .177 semi-auto. Very few of this class, being ar-style. Very realistic eplica of the original MCX by Sig. Except for the screw through the ejection port, its a very faithful representation.

Shooting it is fun. Signature is fairly loud for the caliber and actually has a lot of 'smoke' exiting the barrel with each round. Trigger is not delicate. With about a 7 lb. pull, it isn't touchy, and isn't very smooth. Lots of give. Some may find that good.

The overall weight is not too heavy, and well balanced.
Not sure why the advertisement for it states .22 cal pellets... This isn't true. Fortunately I have plenty of .177 ammo stocked.

For the price, this gun is worth the purchase.

The experience I had with shipping was terrible, had issues. Airgundepot made a bad situation into a good one. Craig helped make it so. Great customer service.


ProsFairly powerful. With 10.5 gr pellets im getting fps over 580. Some hitting 650. Authentic realism for a replica.
ConsNot a .22.
Best UsesFun, plinking, maybe very small game. Within 5-10 yards can be deceptively powerful. Not a toy.
By Steve
Michigan
February 12, 2018
You won't be disappointed.
I bought this gun based on the positive reviews and I love it! Super fun to shoot and feels like the real thing.
By Dylan
Ohio
January 3, 2018
Good rifle
Like the gun. Easy to use. This thing is pinpoint accurate at roughly 15-20 yards with the factory sights. Buy extra magazines and belts or else you will spend an exorbitant amount of time loading the gun in order to get the full use out of that 90g CO2. I've used 4 or 5 magazines on one CO2 cartridge without running out.
ConsI have only used the gun on 2 occasions. I used oil the second time on the tip of the CO2 cartridge. Even with this, after the 2nd use I noticed metal shavings on the seal where you screw in the cartridge. Hopefully this won't be an issue.
By Jim White
MA
December 20, 2017
Great gun, some designs flaws
I purchased this about 5 or 6 months ago. It has good power and is very accurate out of the box. With an added scope, it's damn near awesome.
ProsVery accurate. Decent weight for a gun of this style. Good power Great customer service. Took time to work with me on issues (see below) and helped quickly to get them resolved.
ConsInserting a magazine can be difficult. If holding it horizontal, many times it won't lock in the magazine and in some cases, it's damaged the top of the magazine. After discussions with Sig, they explained the clip that allows the magazine to lock into place doesn't always drop back into position after removing the magazine. This can stop the magazine from being inserted all the way and can scrape up the top of the magazine. Their fix is to hold the gun vertical (barrel up) and allow gravity to drop the clip back into place and insert the magazine that way. IMHO, this is a mechanical/design flaw that needs to be addressed. After between 300-400 pellets through the gun, the trigger locked and wouldn't release until I removed the magazine, adjusted the magazine, and reinserted it. I got about 8 or 9 more shots, and it locked again. It looks like whatever mechanism advances the belt in the magazine has gotten out of alignment. This occurred with two magazines. I spoke with Sig about this also and the gun has been returned to them for repair. All that said, I still like the gun, and I'd buy another once they resolve some of the design issues.
By Shark
Oak lawn
December 16, 2017
Amazing gun
Love the feel the look and how heavy if is the sights are pretty accurate
ProsEverything
ConsThe grip is to small for my hand
By Donnie
gregory, michigan
November 27, 2017
Amazing
My friend bought this for his birthday last month and he bought a scope for it and its pretty accurate. And of corse it was sighted in for him but it was only a half inch off when i shot it. it very durable and is very balanced overall its an amazing product.
By Steven Bogosian
Salem NH
July 18, 2017
Sweet shooter
This rifle is dead on accurate right out of the box. My grandson had a ball shooting in our back yard.
ProsExtremely accurate
ConsNothing worth mentioning
By Zmann
New york
June 12, 2017
Really Nice
I purchased this from bass pro..Got 3 extra mags ,bought is with no scope,straight up open sites.
It came in a nice box with heavy duty foam to store it,they only give you 1 mag..So the extra Mags are recommended..Some things they dont tell you about this .If you are using mulitply mags..After you finish a mag and you drop it to load another,the mcx must be pointing up and then clip loaded so it is seated and engages correctly.If you try and load a fresh mag with gun pointing straight out or downward,the safety feature will lock up the trigger even if the safety is off..then u have to pull the clip and either dry fire the gun before u slide in other mag..Or simply point gun upward and load the mag.. ,but this is made with this safety feature.They want the gun pointing upward to load fresh mags
The mcx is one nice replica of the real sigs.the weight feels similar,as well as trigger pull.I found this to be the best made pellet rifle i have ever used period.
I ran 700 plus rounds thru this and had only one jam.due to a bad pellet ,my tip when loading your strips for the mag make sure when you set them in with the tool you have no bad pellets out of the box..
Out of the box the open sites at 20 yards were just about dead on ..Love the trigger feel myself..The weight is well balanced and easy to handle with minor adjustmeants to the front grip for your liking.Box says 750 fps..I dont have a way of measuring it..but it was all of 700 if i had to guess right up to the 5 mag..On 1 90gr co2 i get 7 mags..note 30 rounds in each..Thats 210 shots.towards the end of last mag i brough it in about 2 feet to targets and was still banging the bulls
.Again this rifle is well made,nice replica..You even have to pull back the hammer to engage bolt before shooting..I used remington .177 4.5 mm 7.9 gr pointed pellets and that were outstanding..They are the same as the crosman prem pointed
.For co2 i used Sig sauer brand 90g.The grouping was in the half inch range out of the box.no adjustmeants.
All metal reciever,alum,shround and surpessor is metal,just about all metal except synth stock,and handle is like Hard comfortable grip,the front handle is a lightweight durable pvc grip..
Over all love this pellet rifle,out of the box grab one tou wont be disappointed well worth every penny

ProsWell built,low noise sounds like a finish nail gun Looks outstanding,feel great shooting 210 shots on 1 90 gram C02 Fun to shoot, at 20 yrds half inch grouping Great tec support they were very helpful in my questions Love the trigger pull myself
ConsIf i had 1 con it would be obly getting 1 mag and 1 strip with gun I really havemt had any issues As stated on the loading safety feature,MCX must be pointed up to properly load mags when using multiply mags or it locks the trigger up. .it is not in the manual or web site anywhere..Tec support explained this to me,as i thought there was a issue with mags.. This should be in owners manual
By Brandon
Illinois
May 12, 2017
Great Gun
Great for firearms training subsequent to the real MCX which is what i bought it for, Small game/pest control, and fun. pretty much feels like my real MCX. Always loved the keymod rail system. I added an MFT grip, 4" pic rail, Caldwell bipod, UTG M16 Ironsights, and have a leapors 4x32 mildot, as well as a UTG red/green dot. great for modifications, sounds somewhat like a suppressed 22, and the 30 rd mag makes it great for firearms training. So glad i spent the money on it. Sig has stepped up their game on airguns.
Pros-Modifiable -Accurate -Powerful -Very Authentic -30 Round mag -Low profile warning label -Real trademarks -Real AR attachments fit (such as the pistol grips) -Accurate with real iron sights once zeroed -90 gram CO2 gives alot of shots
ConsMag jams alot out of the box. i fixed it by using CLP on it and using heavier grain pellets.
By Ed
California
April 24, 2017
Not very good for hunting or target use!
I really wanted this gun, (Until I got it) it is no place close to the advertised FPS it jams easily and often. It's a great wall hanger or if you want to use it as a firearms trainer might be OK.
ProsLooks very cool, generally a good layout for the placement on the bottle and the Mag is a nice idea.
ConsNot very accurate not very powerful around 380 FPS, has no real use outside of plinking soda can's at 20 feet.
By EVERETT
Seaside, CA United States
April 18, 2017
NEEDS WHEELS
GUN IS SO HEAVY IT NEEDS WHEELS
ConsTOO HEAVY I HAVENT USED IT YET.. I WOULD TRADE IT AT A DISCOUNT IN MINUTE.... EVERETT <e24c41@sbcglobal.net>
By Wayne
Ohio
February 23, 2017
The most fun and aggressive firearm
Great firearm for the price. Compare to some that cost 3x the price. Very well built by a well respected company One minor flaws is that the magazine sometime jam if it isn't inserted carefully which will prevent you from firing.
ProsLooks and feel just like a real firearm. Semi-auto.
ConsMagazine jam if not carefully inserted.
By Thomas Bei
Winters, CA
February 17, 2017
First Impression of Sig Sauer MCX
Awesome gun, and the folks @ Air Gun Depot are excellent to work with. Sig MCX is everything other reviews stated, full weight and feel of the real thing...don't forget to purchase extra magazine, you will appreciate the extra belts when out shooting. NOTE: Pay heed to properly setting the pellets with provided tool, this is a must for uninterrupted fun!!!
ProsOutstanding construction, positive trigger pull (be sure to fully pull back and release for index next round) - highly recommend to those seeking an AR platform
ConsAt time magazine requires a little manipulating to seat and click positively
By john
dryden, MI
February 4, 2017
Shots bbs
WOW nice piece. I put a 12gm adapter on it and load it with bbs. Works great, 88 gm co2 is expensive and the dual c02 adapter does not fit. If you want accuracy with bbs keep the oil cleaned out of the barrel. I use a lot of pipe cleaners.
ProsWell made, powerful, accurate
ConsNo 12gm adapter readily available
By Pete
Norwalk, CT
January 25, 2017
Once you figure out how to place pellets in mag belt, it's a great gun. See instructions.
Great power and great accuracy with the right pellets. Recommend Sig Match or Gamo 5.56 grain Hunting Pellets. Initially had a lot of jamming until I followed manual instructions and bought the right pellets, but once I figured out both, no jams!
ProsQuiet, accurate and fun. 30rd mag is great. Buy an extra (comes with 3 belts).
ConsYou need the right pellets in order to avoid jamming, but see my review above and you'll have no issues.
By Domingo Martin
miam fl
October 6, 2016
awesome fun and works great
friend had one and works great so i ordered one and now i have to order another one for my other friend so far have three thanks Airgun depot
By Bill
Chicago, Illinois
August 23, 2016
Good Gun
Just got this today and managed to put 150 shots through it before dark and it's great. Very accurate and functions great if you load it correctly. I've read several reviews of people having jamming issues with this, but i haven't had any issues at all.
By Verdell
Burlington, NJ
June 29, 2016
SIG SAUER MCX Air Rifle
This is a great rifle. It is very accurate and is pretty light. It shoots at the announced FPS. The sights are pretty good also. This rifle wood be good in a 25 cal model. It needs more knock down power. The trigger is easy to pull and the magazine is easy to load. If you are looking for a good all around rifle this is it.
Proslight and accurate
ConsNeeds a bigger caliber
By Tim
Iowa
June 27, 2016
Mpx co2 rifle
This gun is awsome I switch mine to hpa ninja bottle on 1100 psi I use hypermax pellets never jams blows the center right of of targets love this gun
ProsEasy to shot even my 12 year old doughter can shoot it
ConsNone
By Chris
Mansfield PA
June 13, 2016
Impressive
I received mine a few weeks ago. I'm on my 3rd can of pellets. No problems whatsoever. Followed instructions for seating the pellets properly. Using a 90 gm co2 with crosman destroyer pellets.
Thoroughly enjoying this rifle
ProsSturdy construction. Not much plastic.
ConsDon't care for the rear peep sight. Should be more like a dove tail. Try Glo sights would be ideal
By Sandy82579
Houston, TX
June 9, 2016
Excellent, well-built Rifle
I have had no problems with this rifle at all. It's well built and shoots great. I shredded a bullseye from 15 feet away with a 30 round clip. I use the Sig pellets and have read and followed the directions on loading them in the belt. Not jams. No leaking.
ProsAccurate, well-built, fun to shoot.
ConsNone.
By Glen D
Arlington,VA
May 29, 2016
What a jamming mess
I bought my MCX a couple of months ago when it came out and just got to shoot it today for the first time. I wish I would have waited.. It shot well for the first 90 shots. Then it just started jamming every couple of rounds or it would not discharge the pellets from the belt. I've tried several different kinds of pellets leaded, polymer/ copper, copper. I get it Unjammed but I'm not sure what I'm doing to get it Unjammed. This is the first 88g air cylinder I'm on, maybe it's past the 90 round point and it is too low in pressure. I'm hoping it's a mag belt issue and Sig will fix and replace them.
ProsOne sweet looking 3D wall decoration.
ConsJamming issues that need to be fixed.
By John
Silver Spring, MD
March 6, 2016
Great Looking gun.... BUT
This is a great looking gun, nice weight to it, feels good right out of the box. When it came, I took it over my friends house and we started shooting. Loading the magazine was a chore within itself, it comes with a seating tool that helps out a lot. Once you get the pellet seated in there, you have to load the belt into the magazine which was not too bad once you get it going. Loading the CO2 was easy, just put a little oil on it and screw it on there and slip the stock right over it... Like I said looks great. I fired maybe 3 shots before the magazine was jammed, I cleared the jam and shot maybe 2 more shots before it jammed again. I thought maybe it was the pellets that I was using so I tried a different kind with the same results. I used RWS Superdome, RWS Meisterkugein pellets, Corpsman Premier hollow points and JSB Diabolo Exact Heavy all with the same results. I spent more time clearing jams than actually firing the rifle. I think SIG should spend a little more time on developing a better mag for this gun.
ProsGreat looking gun Nice Feel to it
ConsMagazine jams every few shots and takes the fun out of shooting
By John
Houston, Texas
February 9, 2016
sig saur mcx air rifle
I got this rifle for Christmas. Had done my research and had not found anything really durogatory about this rifle. I've shot over a thousand rounds through it and only had it jam twice, both times it was low on air. Figured out that each co2 cylinder was good for about 150 shots. After that you could tell it was getting low and time to change it out. In all I have been very satisfied with the performance of this rifle until recently. I don't know if it was because of rapid firing in cold weather that caused it to make a high pitched belching sound , which resulted in hearing it beginning to leak air. After a couple more shots it stopped. The leaking air sound I heard sounded just like a recently posted utube video I watched where the guy says his was broken and sending back. ....It's leaked on me twice now and the last cylinder seamed like it went fast. So I'm going to try one more cylinder to see if the problem persist, and keep an accurate count of my shots. If it fails I'll be sending it back....Hopefully sig has already recognized this problem and is able to fix it with upgraded parts. If not and the problem persist, I will be very disappointed......
ProsNice looking. Good feel, fun to shoot. Plenty of power for a co2 rifle.
ConsHopefully the leaking air problem is not chronic with all sigsauer air rifles and air guns. I could understand if I had for several years and shot thousands of rounds through it. But I've only had mine for a couple of mths.
By Agent47
Marietta, Ga
January 14, 2016
wall decoration
this is the worst air gun I ever shot! you spend more time unjamming the clip than shooting. I've tried every type of pellets, even pellets from SigSauer jams every 3 to five shots. There's a lot of people complaining about this issue, but if you want a badass living room decoration you can't go wrong. Sig needs to do a lot of work and improvement to this gun before getting into the air rifle market. I'll be retuning mine or try to re-sell it!
Proswell built, looks like the real thing
Consjams constantly, not pellet friendly even from its own manufacturer
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Accessories
Compare Calibers
SIG Sauer MCX
  • 0.177
    Caliber 0.177 Cal
    Velocity 750 FPS fps
    Loudness 4-Medium
    Mag Capacity 30
  • 0.22
    Caliber 0.22 Cal
    Velocity 525 FPS fps
    Loudness 4-Medium
    Mag Capacity 30
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