On with the show… First I shot five rounds through my Chronograph using a brand new CO2 in what I would consider to be room temperaterer (20C or 70F). Sig Sauer claims their MCX Rattler shoots around 325 fps and in my testing I got a five shot average of 318 with my slowest shot hitting 298 and my fastest shot hitting 346. So I would say Sig is right on the mark here.
I then setup a fresh pepper target 30 feet away and loaded up a full magazine (30 rounds) for my accuracy test where I first shot in 10 rounds in semi auto and then the remaining 20 rounds in three round burst. I would say I was able to get around a 2 inch grouping in semi auto but I did have to shoot aiming on the bottom of the rings and I was using the flattened sights rather than the pop up sights as you have two options with the Sig Sauer MCX Rattler CO2 BB Rifle. Once I switched the selector to three round burst, my grouping really did not change all that much, maybe 3 inches at most and that was with 20 rounds.
The Sig Sauer MCX Rattler CO2 BB Rifle is a lot of fun, it is by far not the most powerful blowback full auto-ish Blowback BB Rifle out there but it performs decent and looks really good. The internal blowback action does give you a slight tapping feel and it does allow for a true single action trigger. If you want a rather compact Blowback BB Rifle with Sig licensing and branding along with Sig quality then take a look at the Sig Sauer MCX Rattler CO2 BB Rifle. Did I mention it was really affordable too?
Type: BB Rifle. Manufacturer: Sig Sauer ASP Model: Sig Sauer MCX Rattler Materials: Metal and Nylon Fiber build. Weight: 4.6 Pounds (2.1 kg). Barrel: 7 inch (17.8 cm) steel non-rifled. Propulsion: Single 12 gram CO2. Action: Semi auto and 3 round burst with internal blowback (single action only trigger). AmmunitionType: 4.5mm Steel BB’s. AmmunitionCapacity: 30 rounds spring fed. Velocity: Claimed of 325 fps.
TriggerPull: The trigger pull on the Sig Sauer MCX Rattler CO2 BB Rifle is a single action only trigger that requires initial activation of the charging handle, after the first shot the internal blowback action will do this automatically for each followup shot. The single action only trigger is fairly short with a light pull and predictable release, great for action shooting. You also have the option of shooting in true semi auto (one trigger pull and one shot) or selecting 3 round burst mode which allows for one pull of the trigger with 3 rounds in full auto.
Accuracy: I really don’t have much feedback to give here as I have only shot a single magazine so far with the Sig Sauer MCX Rattler CO2 BB Rifle in a very uncontrolled format as I was not so much testing it out but rather just having some initial fun to see what it was all about. I will of course be following up this Table Top Review with a Field Test Review shortly to find out what the actual velocity is and see how accurate it is in both semi auto and 3 round burst mode.
BuildQuality: The build quality for the Sig Sauer MCX Rattler CO2 BB Rifle is really good considering it is mostly all plastic on the outside. It does feel solid and well built when holding it in the hand. From what I can tell the metal parts would include the barrel, the charging handle, the main controls and also much of the internal components inside both the rifle and the magazine. I would have liked to have seen a metal flash hider and perhaps the pop-up Iron sights could have also been metal.
Realism: The Sig Sauer MCX Rattler CO2 BB Rifle is a 1 to 1 scale very realistic Replica of the real steel Sig Sauer Rattler normally chambered in 5.56 NATO. It would have been nice if the dust cover opened up when charging the Airgun for realism but most of the other controls work as expected, like the charging handle, selector switch, magazine release and I am not sure but maybe even the bolt release, I will know more when I make my Field Test Shooting video for the Sig Sauer MCX Rattler.
Pros:
Perfect size and weight for a fun BB semi / full auto shooter.
Fully adjustable pop up sights that are usable in both the down and up position,
Lots of accessory mounting options with the picatinny top rail and MLOCK in the sides and bottom.
Folding rear stock allows for a compact size and much easier transportation.
Ambidextrous selector switch.
Can shoot in both semi and 3 round burst modes.
Very solid AR15 type magazine that holds the 30 4.5mm steel BB’s and the single 12 gram CO2.
Reasonably priced at around $250 at the time of this video.
Sig Sauer licensing.
Cons:
Only uses a single CO2, two would have been better in a fast action shooter like this to maintain fps.
325 fps seems a bit low.
Lots of plastic but build quality does feel good.
Comments:
The Sig Sig Sauer MCX Rattler CO2 BB Rifle reminds me a lot of the Umarex Steel Storm and Steel Force which are both Compact AR type Semi and Burt mode 4.5mm CO2 Blowback Airguns. Where the Sig Sauer MCX Rattler CO2 BB Rifle shines, is in the quality and realism as compared the Umarex counterparts. I do like that both the Umarex Steel Storm and Steel Force use dual 12 gram CO2 cartridges which I feel allows them to have more consistent velocity and performance as compared to the single CO2 in the Sig Sauer MCX Rattler CO2 BB Rifle. My First impressions without really testing the Sig Sauer MCX Rattler are all pretty positive but it will really come down to how well it performs and so I will put my recommendations on hold until I actually test it out!
My Table Top Review of the Sig Sauer MCX Rattler CO2 BB Rifle:
I love making these Mystery Box Unboxing Videos as many of the items inside are actually real mysteries to me, some I may have an idea of but even these items are new to me so it’s fun to open them up and check them all out. In this October 2023 Mystery Box Video I checkout 9 items ranging from AEG Airsoft Rifles to Airsoft , BB and Pellet Pistols. There is even a new Steel BB product from Sig Sauer that is a compact rifle with a 3 round burst option when shooting.
