Sig Sauer P322 & SRD22X Review: The Quiet Couple

David Luttrell6 hours ago

0 479 6 minutes read

Sig Sauer P322 & SRD22X Review: The Quiet Couple

We hit the range to test out a Sig Sauer P322 paired with an SRD22X suppressor, one slick and quiet .22 LR package.

Most shooters agree that suppressed .22s are the most fun you can have with your pants on. They’re easy to shoot well, the ammo is cheap enough that you can blast all day and they have the potential to truly be “Hollywood quiet.” Here I’ll be going over Sig Sauer’s suppressed .22 combo—the P322 and the SRD22X.

Sig Sauer P322 Specs:
Caliber: .22 LR
Barrel Length: 4 inches
Overall Length: 7 inches
Weight: 17.1 ounces
Magazine: 20-round
Street Price: $400

Sig Sauer SRD22X Suppressor Specs:
Caliber Rating: .22 LR ; .17HMR/.17 Mach II ; .22 Magnum
Length: 5.8 inches
Diameter: 1 inch
Weight: 5.1 ounces
Materials: Titanium tube/stainless steel baffles
Attachment Type: Direct thread
Street Price: $430

First Impressions

When I pulled the P322 out of its box, the first thing that struck me about it was its weight. This thing is light, so light that it almost feels like a toy. It does not feel cheap, however, and its polymer frame feels like the same quality that Sig Sauer uses for its centerfire handguns.

Being so light isn’t atypical for polymer-framed .22 LR pistols, but what is different about the P322 is its impressive 20-round magazine. Two are included and they fit flush inside the full-size grip.

Speaking of the grip, I love the P322’s ergonomics. The profile of the grip, along with the rest of the pistol’s aesthetics, appears to be primarily influenced by the Sig P365. As far as micro-compact 9mm carry guns go, the P365 is considered one of the most comfortable, but since the P322 wasn’t designed for concealed carry it’s a bit bigger in every dimension which makes it even nicer to hold. I have average-sized hands and can get a full grip on the pistol with some room to spare at the bottom, and although the gun is very slim, it’s not too slim as to be unpleasant.

Each P322 comes with two mags, a magazine loader, a threaded barrel adapter and an interchangeable curved trigger shoe (the pistol comes with the flat trigger installed), and it all ships in a hard case. It’s nice of Sig to include a hard case, but my first minor nitpick is that it’s too small. Just the gun and one spare mag is a tight squeeze, and if you put a red dot on it, good luck finding the one specific orientation that will allow for the case to close. Not a big deal, but it would have been nice if Sig made the case just a little larger.

The final point to touch on here is the P322’s controls. Both the safety and the slide release are easy to access with the thumb from a firing grip, and the magazine release is big, easy to push and lets mags drop free without issue. The controls are ambidextrous too and the mag release is reversible, so lefties needn’t worry.

As for the SRD22X, once I was able to bring it home and take it out of the box the first thing I noticed about it was also its weight. Featuring a titanium outer tube and steel baffles, it tips the scales at just a hair over 5 ounces. A perfect complement to a lightweight pistol.

In the suppressor’s box, you’ll also find an M9-.75 thread adaptor and a tool for removing the end cap for cleaning. The native threads are 1/2×28.

Putting It All Together

Installing the SRD22X on the P322 was a quick and easy affair. The pistol ships with a protector on its threaded muzzle, but it’s cleverly the same diameter as the barrel and is neatly hidden inside the slide. This means that those who don’t want to run a can on their P322 won’t have an unsightly protrusion on the muzzle.

For those who do wish to run a can, it’s as simple as locking the slide back, putting the gun in a vise and removing the thread protector with a wrench. The included adapter is then threaded on in its place and voilà, the pistol’s ready for its suppressor. In the case of the SRD22X, that also meant just screwing it onto the threads. Sig recommends using 45 inch-pounds of force to install the adapter and screwing the suppressor on until it’s hand-tight.

Before heading to the range, I also decided to throw a red dot on the P322 since it’s optics-ready.

Again, the process was simple. I removed the two screws in the rear sight plate and pulled it off of the slide, replaced it with the red dot and attached it using its included screws. I used a Bushnell RXC-200, but anything with an RMSc footprint will work.

With those two pieces installed, the P322 was ready to rock.

On The Range

As I usually do when testing a new gun, I like to see how it will run dry out of the box without any cleaning or lubing. If it initially has issues, it’s forgivable and gets some lube before continuing, but if it runs fine, it’s a good sign of reliability. Thankfully, the Sig P322 ran smoothly right away.

That’s not to say that it was flawlessly reliable, but the issues that it did experience were not caused by the gun itself.

The first type of malfunction encountered was due to the ammunition, something that can be expected of any direct blowback .22. I tried to run a few different loads through the P322, both suppressed and unsuppressed, and found that the only one it didn’t want to reliably cycle was Remington 22 Thunderbolt. Not much of a surprise for the cheap bulk-pack stuff. That said, it worked more than it didn’t.

As for the loads that my P322 did like, the pistol’s favorite was CCI Mini-Mag as far as supersonic ammo goes. For subsonic ammo, of the two kinds I had, only one was designed to reliably cycle semi-autos but it thankfully functioned great in the P322 as well. That load is CCI Quiet-22 and it features 45-grain lead round nose projectiles and an advertised muzzle velocity of 835 fps. I put about 400 rounds downrange without an issue, and the SRD22X made the whole affair about as quiet as possible. While it’s still probably not great for your long-term health, I felt no need to wear hearing protection while testing this setup.

The only other malfunction I encountered was the result of user error—how I loaded the magazines. They’re easy to load, but if you don’t pay attention, it’s possible for the rounds to get jumbled inside and cause feeding issues. As long as all the rounds look to be neatly stacked through the window of the mag, they should feed perfectly. This isn’t an issue, it’s just something to be aware of if you own one.

Outside of reliability, how did the P322 and SRD22X actually shoot? Very well.

As mentioned, I’m a big fan of the P322’s ergonomics. It fit my hand and accommodated a modern shooting grip very naturally. Combined with its .22 LR chambering and suppressor, you can imagine just how easy it was to control, even when shooting relatively fast.

I say only relatively fast as I couldn’t run the gun as quickly as I could with some other pistols because of its trigger. It’s not terrible, but it does leave a lot to be desired. It has more travel than I’d like and gets pretty mushy at the end, but once you learn to find the wall it’s a pretty light break. The reset is alright, but again, I’d prefer it to be a bit shorter.

Even with a not-so-great trigger, shooting the P322 was a blast and I had no problem cleaning plate racks with it. Subsonic .22 LR doesn’t knock them down with too much oomph, but it knocked them down nonetheless.

The fiber optic iron sights that come with the P322 are perfectly suitable as well, I just prefer red dots these days. The particular Bushnell optic I used has a built-in rear iron sight, but it’s so short that I can only just barely co-witness the front sight with it. If you’re shopping for a red dot for your P322, I’d look for one with a taller integral rear sight.

Parting Shot

Overall, the Sig P322 and SRD22X make for one sweet package.

When you take the P322’s features, capacity and general performance into account, I think it’s one of the best .22 LR semi-auto pistols on the market for its price. Pairing it with Sig’s .22 suppressor only makes it better.

As I mentioned, the only real complaint I had was the P322’s trigger. That said, if you only plan on using one for varmint control around your property or, like me, for casual range plinking, the trigger is perfectly acceptable. If, however, you’d like to do some more precision target shooting with it, I’d consider an aftermarket upgrade.

The pistol is also a bit more ammo-sensitive than some other semi-auto .22s out there, but it’s not hard to find a load that it likes and just feed it that.

I think this setup shines mostly as a ranch companion or a range toy, but for individuals who can’t handle anything more powerful than .22 LR, it could make for a decent defensive option as well thanks to its large capacity and ability to accept an optic, light and suppressor.

Regardless, if you’re in the market for a suppressed .22 pistol, both the P322 and SRD22X are well worth your consideration.