There are a lot of options out there for 9mm suppressors, but not all of them are made equal. The SRD 9 kit from Sig Sauer is arguably the best deal going. Today we are going to take a look at why that is and what you should look for when purchasing a suppressor.
There are many reasons for people to buy suppressors. If you’ve been shooting for years or are trying to introduce someone to the shooting community, there’s no better way than a suppressed firearm. When a firearm is discharged — it’s loud. There are three sources of sound when a firearm goes boom: the muzzle blast of the high-temperature and pressure gases escaping after the bullet, the sonic crack, and mechanical noise from the firearm’s bolt or slide moving rearward. Suppressors can help to mitigate the sound from the muzzle blast by slowing propellant gases and allowing them to cool before exiting the muzzle. Sonic crack can be mitigated by using subsonic ammunition and the noise of the slide or bolt going into battery could be minimized, but it’s typically so low that people don’t bother with it.
One of the first considerations we should contemplate before purchasing a suppressor is what is it made of and why does it matter? If you’re going to go through the process paperwork and the waiting period, you want to make it worth your while. First of all, the materials SIG Sauer used in the construction of their suppressors are top notch. The shell for their SRD9 is titanium, with all stainless steel baffles. Many suppressors at this price point use aluminum after the first blast baffle, which willwears much more quickly than steel. The interior itself is made of K stacked baffles, not a monocore. A monocore baffle is a solid piece of metal that has sections machined out of it. The stacked baffle design that SIG engineered requires more machining but it helps on a few fronts.
Stacked baffles tend to be quieter, and do a much better job of dispersing heat. If you have ever owned both, you also know a monocore is more difficult to clean. All those little nooks and crannies cut in to swirl the gases around are hard to finish the job on. And last but certainly not least, stacked baffles are more forgiving if you screw up. If you manage to have a baffle strike, maybe because your can became loose during training, it’s not going to be fun to fix. No matter what, your can must be returned to the manufacturer. They can’t just send you a new baffle, as much sense as that would make. Even at the factory, having spare baffles for a serialized suppressor is a major no-no. With a monocore, you are going to be charged for an entirely new core, which is probably close to the price of your suppressor. With a stacked baffle, provided you only hit one, they only have to replace one, which is much cheaper to maintain.
- Caliber: 9mm
- Weight: 9 oz.
- Diameter: 1.38 in.
- Overall Length: 7.2 in.
- Threads: 1/2 in. – 28 tpi
- Attachment Type: Direct Thread
- Material: Titanium & Stainless Steel
- MSRP: $745
- Manufacturer: SIG Sauer
Another thing to consider when looking at your options in cans, is what are you going to mount it to? Unfortunately, there isn’t an exact standardized attachment method and firearms come with different attachment methods. When the SRD9 kit arrived it came with everything you need in the box. Included are a 13.5×1 Left-hand piston, a 1/2×28 piston, and a fixed barrel spacer. The pistons are variously described as Neilson devices or boosters, and are a necessary piece of gear for any tilting barrel pistol. These boosters help recoil-operated firearms cycle properly by boosting the recoil energy of the barrel and slide and temporarily decreasing the effective attached weight. The 13.5 and 1/2x 28 cover the vast majority of American and European 9mm barrels. One day I am sure that will be standardized, but not today. The fixed spacer is there for carbines or any non-tilting barrel pistol. Many companies charge extra for other pistons, if they even make them. Out of the box SIG has you covered, whatever your host of choice.
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Third, this can works. Really, really well. I don’t operate in a lab, but my ears are pretty attuned to what is too loud and what is okay. Even with supersonic ammo, the SRD 9 is comfortable to shoot. It does a fantastic job of muffling the noise and with Freedom Munitions Hush, its even better. The loudest part of the 165-grain bullets I shot during testing was the slide moving. This is exactly what you are paying for, and it delivers in spades.
Full auto rated, quiet as the grave, and bargain priced at the moment. If you are looking for a 9mm suppressor, you’d be hard-pressed to beat the SIG Sauer SRD 9.
For more information about SIG Sauer suppressors, click here.
For more information about Freedom Munitions, click here.
To go behind the scenes of SIG Sauer ammunition, click here.
To go behind the scenes of Freedom Munitions, click here.