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WARNING This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov 
SIG Sauer MCX Rattler CO2 BB Rifle
Sold & shipped by Pyramyd AIR
| Caliber | .177 (4.5mm) |
| Max Velocity | 300 fps |
| Stock | Synthetic |
| Grip | Ambi |
| Color | Black |
This item is not eligible for coupon discounts
The SIG Sauer MCX Rattler CO2 BB Rifle has many similarities to the successful short-barreled rifle firearm line that inspired it. It reaches velocities up to 300 FPS for excellent performance for target practice or plinking.
This BB rifle features a minimalist folding stock that is reminiscent of the one from its powder-burning counterpart, making it easy to transport and store due to its compact size with the stock folded. The pistol grip uses a combination of texturing on the sides and ridges on the front and rear that makes it nearly identical to the grip used on the firearm version.
The SIG MCX Rattler utilizes a drop free magazine with a capacity of 30 BBs to provide extended shooting time, and the selector switch goes from safe, to semi-auto, to 3-round burst to deliver an exciting experience without wasting ammo. This BB gun uses a 12-gram CO2 cartridge for power and has ambidextrous controls to accommodate both left-handed and right-handed shooters.
The long Picatinny optics rail for this air gun holds both the included flip-up front sight and the flip-up rear sight to enable accurate shots out of the box, as well as allowing shooters to add a scope or dot sight. In addition, the handguard offers M-LOK T-slots that help to securely and easily attach accessories such as lasers and lights.
To get an airgun that takes its design cues from the renowned family of SBR firearms, buy a SIG Sauer MCX Rattler CO2 BB Rifle from Pyramyd AIR now.
Tech Tip: The safety can only be engaged when the rifle is cocked, like the real steel version. Attempting to force the safety "on" without the rifle being cocked may damage the airgun.
SIG Sauer MCX Rattler CO2 BB Rifle
SIG Sauer MCX Rattler CO2 BB Rifle
Sold & shipped by Pyramyd AIR
| Caliber | .177 (4.5mm) |
| Max Velocity | 300 fps |
| Stock | Synthetic |
| Grip | Ambi |
| Color | Black |
| Max Velocity | 300 fps |
| Overall Length | 23.63" |
| Buttplate | Adjustable |
| Function | Repeater |
| Weight | 4.6 lbs |
| Scopeable | Weaver/Picatinny |
| Safety | Manual |
| Suggested for | Plinking/Fun |
| Caliber | .177 (4.5mm) |
| Loudness | 3-Medium |
| Barrel Length | 5.5" |
| Shot Capacity | 30 |
| Barrel | Smooth bore |
| Front Sight | Flip-up, adjustable |
| Rear Sight | Flip-up, adjustable |
| Action | Burst fire |
| Powerplant | CO2 |
| Blowback | Yes |
| Max Shots per Fill | 60 |
| Ammunition | 5.1gr |
| Body Type | Rifle |
| Fixed/adj. power | Fixed |
3.5 (10 reviews)Create an online review
4.0 4.0
First things first, this airgun is very well made. Although the plastic on some parts may be prone to damage (charging handle, flip up sights, and stock). One big problem is that the accessories on this airgun is not (kinda) compatible with other Sig airgun accessories (other airgun handguards). Some Amazing features on this airgun are: slide locking back on last round, Not being able to put back on safe after dry fire, great blowback, YOU CAN FIELD STRIP IT, (internal) gas blowback, the magazine not looking horrible (pmag 🤩🤩🤩) folding stock, the stock not looking horrible, working small features (bolt release and assist, ambi mag release) WORKING SLING QD (only on stock....). Some very bad things about this airgun are: plastic handguard, non working handguard sling QD, flimsy and wobbly charging handle (also plastic), so light that the magazine is heavier when the gun is bare bones, non working sling QD near fire selector. The absolute best feature(s) on this gun for me is the godteir trigger, 3 round burst(I forgot the metion) and charging handle+working bolt. DO NOT! absolutely do not rack the charging handle too hard, it will literally snap.
5.0 5.0
Works good, do not overfill magazine. Great for shredding boxes.
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Does the rear stock attach to a rear pic rail or what....?
Yes it does, ignore the person who says it cannot be detached they are wrong, it attaches much like the real Sig folding brace does, and needs only an allen key to remove and reattach to the Rail on the rear of the receiver, that said the rail is a non standard picatinny rail, the locking lugs are very small, not as deep as standard, and are much closer together, further the rail is interrupted by a screw into the rear of the receiver which blocks usage of some of the smaller locking lugs, also there is a spot that lacks any lugs/slots as is all flat, then at the bottom there is a single standard sized lug that you can attach picatinny rail attachments to if so desired, and if they only have one lug, as theres only one standard slot in the rail for such a lug, i was able to attach a flashlight to it for proof of concept but cant imagine why id attach anything but the stock given that its non standard, and i dont know what the point of mounting anything other than a stock is for the placement of this rail. The Stock doesnt use any of the locking lugs to attach and only attaches by clamping onto the dovetail of the rail, the hex head bolt securing it does not run through a slot/lug but rather just screws through a small bracket (half clamp) from the right side of the rail into a bolt hole in the folding section of the stock which includes the other half of the dovetail clamp (and the rest of the stock)
Negative it is attached to the body and cannot be detached
Is the length in the specifications with the stock extended or folded?
Is this the same folding brace found on Sig’s real guns ? Will I be able to take off and attach it to a real sig gun?
No, At least i really really hope not lol, the stock is flimsy polymer, and doesnt even stick straight out of the back of the receiver, it flexes very easily up to 45 degrees in either direction, and finally the real Sig is aluminum, not polymer, and costs $200, more than this BB gun does, so definitely not designed to be used on firearms, but the design is essentially the same, materials and workmanship however are not at all.
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By Al
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REAL JUNK!
Things I would have changed:This CO2 gun has an extremely limited life because the gas seals in the receiver where the magazine connects are junk! After so many recharges with a new gas cartridge the seals wear out and all your gas leaks out! I know it's not the magazine because I tried a new one and same thing happens.
What others should know:If you're determined to buy one I recommend getting a protection plan, for whatever it's worth. SIG should stick to making real weapons, which are probably just as worthless!