Nemo Mongoose — An Engineering PCC Marvel

If I were going to buy a PCC/9mm subgun, this Nemo Mongoose would be high on my list. My first PCC was the Colt 9mm Carbine. I think I got it in 2004 or so. It was a full length, 16-inch version and I immediately sought to SBR it. In those days it was all paperwork, no E-file and the process was no more than two weeks from the time the mail carrier picked up the multiple envelops til they delivered the approved tax stamp.

Good days, but not so much for the Colt. It was plagued with issues, the main being the fact the buffer allowed too much rearward travel of the BCG and it would smash multiple bolt catch/release levers. Some advancements made it better back then, and I think I ended up with a heavier buffer but in all honestly I can’t recall. It became too much of an issue and continues to reside in the back of the safe.

Nemo Mongoose — Best Of Both Worlds

Today’s PCC’s are mostly right with seemingly countless designs to choose from whether you like the AR15 style or something closer to the venerable and timeless MP5. The Mongoose is a combination of the best of both styles, with controls that are AR inspired and operation that is actually new. And I dare say different providing low recoil and smoothness of the delayed roller system with a tilting barrel as well. In the end it’s an impressive shooter that rewards the operator with new “sensations”, if you will if said operator knows what to look for. 

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Although I am an ardent precision rifle shooter and don’t get much time on guns like the Mongoose very often, I knew immediately upon the first press of the trigger that something was way different inside the Nemo. It’s a unique recoil impulse that is both quick and smooth—free of drama with a different kind of timing. If you’re used to shooting PCC’s you should be able to notice it immediately. It was so unusual (in the best way). I immediately called Nemo and spoke with Daniel Neitzling, their chief engineer. This guy is a young mastermind with designs that are truly rare in the firearms space. My question was answered when he said it was a delayed, tilting barrel short recoil operating system and to his knowledge there isn’t anything else like it on the market.

Beyond the unique functionality is a great looking firearm. One you want to lean against a wall and just stare at, taking in all the lines, cuts, angles, screws, and other intricacies. There’s a lot to look at but it still exudes an air of sophistication. But Nemo has been creating amazing looking if not just amazing rifles for a long time.

Feature Rich Mongoose

The Mongoose is indeed feature rich and uncompromising. Its receivers are Nemo extruded aluminum up top and billet on the lower half. The magwell has a generous flare making it easy to insert the S35 EV9 P-Mags which are of the CZ Scorpion lineage. It maxes out with an impressive 35 rounds of capacity and you get two of them with the gun. The mags don’t drop free, which I actually like in a gun of this sort and a large paddle releases the mag when pressed.

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Ambi controls is the only way to go and the Mongoose obliges with said paddle release along with fire controls, and bolt release buttons which are much like AR types and exactly in the same position in relation to the trigger on either side of the pistol (this one is equipped with a brace). The forward riding HK-style charging handle can be moved from side to side as well.

Muzzle Caps

A truly unique feature to the Mongoose, and one that only Daniel could come up with is their unique interchangeable muzzle caps which are removable and interchangeable. These pieces lock into place on the front end of the rather short forend giving the user options on how to outfit the front of the Mongoose. One muzzle cap is a “standard” end and the threaded barrel is exposed just like any other type of firearm. The other is a functional compensator that replaces the standard attachment and doubles up to completely cover the threaded end of the barrel while looking straight sexy and cool. These attachments are removed and replaced by pressing tabs on either side of the end caps themselves. Quite slick I must say.

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If you want to run a suppressor like the Dead Air Mojave 9 that I did, use the standard end cap attachment. If you’re not running suppressed you can just thread on the thread protector and run a stubby barrel, or use the brake attachment an operate like a rockstar.

Takedown and field stripping is easily accomplished by removing the charging handle, turning the takedown lever and pulling said lever out. The barrel and carrier assembly pull out through the front of the gun. Once this is done you’ll quickly find that the barrel can be easily and quickly changed out. Truly innovative design is on tap inside the Mongoose.

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PDW Vs PCC

This Mongoose is more PDW than PCC in my opinion. It’s teeny tiny with an overall length of 13.7 inches when folded. The attached, folding brace adds 10 inches and makes it more manageable.  The foreend is a short 4 inches so you need to watch your support hand placement especially with the compensator attached. A hand stop might be a good accessory to add. It weight a mere 3.66 poubds sans the magazine. This could be an excellent home defender or gun for a bag.

Although it’s light and small it punches way above it’s weight class with a recoil impulse that is extremely light and brief. That operating system clearly has advantages and it shows up once you start pressing the ALG ACT trigger. It must be shot to believed. This is one of those guns that you can just keep shooting and shooting because you’re trying to figure out how its doing what it’s doing. All the while you are just totally enjoying yourself. It ran with no malfunctions—just as I’d expect.

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Nemo Mongoose Wrap Up

The Mongoose is an engineering marvel and that could be easily overlooked by external appearances only. You have to pick it up, handle it, shoot it, then break it down to grasp the designing prowess that was executed upon it. The words that come to mind are precision and exactness. The fit and function is as crisp and clean as it’s aesthetic lines.

The Mongoose costs $2,699.00. That’s not cheap, I guess but in the days of the Stacatto that everyone seems to own and $2,000 Glocks, that’s reasonable especially when you consider what this gun has and does that the others can’t and won’t. Nemo has always been a premium brand that’s taken no shortcuts and the overall fit and functionality of this firearm makes that point clear. This PCC/PDW is on a slightly different plain.

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