Good afternoon suppressor fans and welcome back to yet another edition of TFB’s Silencer Saturday brought to you by Yankee Hill Machine, makers of the new MARC bolt action pistols. Today we will take a look at the first of three silencers from a lesser known, but highly underrated manufacturer. The Rex Silentium MG10 is a full size .308 suppressor that features a standard thread mounting solution and a tubeless baffle stack design. But is it a cure for the silent affliction known as Subsonicosis spread by the NFA virus? Let’s take a look.
SILENCER SATURDAY #115: Catch The Subsonic Virus – Rex Silentium MG10
Like many of you, I find myself in a constant battle between maximizing suppression and a maintaining small overall footprint for host/suppressor combos. As we have said in the past, there is no free lunch: small and lighter often means louder whereas super quiet often translates to ‘long and heavy’ (that’s what she said). These facts are a big part of the reason I recommend against “do it all” suppressors that can be used across a wide variety of hosts – their adaptability often makes the just average performers.
In a perfect world where everyone has the available funds, I’d suggest owning four silencers: rimfire, short .308, long .308 and a modular pistol can. An alternative is to just budget for a silencer for each host, much like you would for an optic. But the theory of four silencers gives you the ability to cover 90% of your bases without making drastic sacrifices. The pistol and rimfire categories are self explanatory, whereas the short .308 suppressor can be used on supersonic rifle rounds and the long .308 suppressor can be used with subsonic setups for ultimate quiet.
The Rex Silentium MG10 fills the last category quite nicely, especially at its current sub-$700 pricing. Let’s take a look at the details.
Standing on the shoulders of the GEN3 Fidelis Rifle Suppressor, the MG10 pushes the suppression-centric design further. Now in a tubeless embodiment, we have leveraged the years of development and testing to craft a tough, light and above all, quiet suppressor.
Ready to take on your wildest host, whether a wildcat, ultra magnum, Weatherby magnum or just a vanilla 30 caliber, the MG10 can handle whatever punishment you choose. Backed by our lifetime, no bullshit warranty we designed the MG10 to be easily recored should you ever have any problems. The serial number and engraving is at the very back of the suppressor body. This is the safest place in the event of a baffle strike. If you ever damage to the suppressor we can recore it fast and return it to factory new condition in a matter of days.
Precision CNC machined from 100% 17-4PH stainless steel, fully welded then hardened to the max. The final result is a suppressor with a hardness of 45-47Rc and tensile strength of 190,000psi. Go ahead… mag dump, bump fire or swing your selector to full auto. This suppressor is ready to last a lifetime or two or three!
In addition to the design of the suppressor itself, we also made our assembly systems easily adaptable to custom orders. If you need a special bore size for your host firearm or even a special length, we can build it for you. Our manufacturing cells are flexible enough to accommodate one-off custom assemblies. We can even customize your serial number.
The MG10 and all of our rifle suppressors are compatible with industry standard quick disconnect (QD) mounts. The main thread on the back of the suppressor is 1.375-24. There are many options for QD mounts on the market.
Rex Silentium MG10 Specifications:
- Tubeless & Fully Welded
- Industry Standard 1.375-24 Main Thread Mount
- 100% 17-4PH Stainless Steel Hardened to 45-47Rc at 190,000psi Tensile
- 8.6″ Overall length
- 19.8 oz
- 1.70″ Diameter
- Unique RAW Flat Bronze Heat Treated Finish
- Full Auto Rated
- No Barrel Length Restrictions
- Easy to Recore
- Lifetime, No BS Warranty
- MSRP: $849
- Current Sale Price: $699.50
- Past TFB Rex Silentium Coverage:
- New Pew Pew: Rex Silentium COV 22 – Covert 22LR Mini Suppressor – https://www.thefirearmblog.com/blog/2019/07/09/covert-22lr/
- Rex Silentium Gen2 Suppressors (Honoris, Viribus and Fidelis) – https://www.thefirearmblog.com/blog/2018/03/29/rex-silentium-gen2-suppressors-honoris-viribus-and-fidelis/
- New Rex Silentium “Potens” Rimfire Suppressor – https://www.thefirearmblog.com/blog/2018/05/24/new-rex-silentium-potens-rimfire-suppressor/
- dB – 223 Remington (5.56 NATO)
- 10.5″ Barrel: 133.58
- 24″ Barrel: 127.44
- dB – 308 Winchester (7.62 NATO)
- 20″ Barrel: 135.87
- 12.5″ Barrel: 136.02
- dB – 300 Blackout (subsonic)
- 16″ Barrel: 118.86
As expected, the weight and length of the MG10 is on the upper end of the scale for a rifle suppressor – this silencer wont disappear on the end of any barrels. The MG10 is a direct thread suppressor with the mounting cap modularity to accept different thread pitch inserts. The design is simplistic, straight forward and rugged. My one request would be that the wrench flat area on the mount module have a smaller diameter to fit in some hand guards, but that’s me nitpicking.
A huge benefit of the MG10 is the use of the use of the unofficial industry standard mount module thread specification of 1.375×24 thread pitch. Which means users can opt for the use of third party mounts from YHM, Dead Air, Q, and others. For today, I chose the Plan B and Cherry Bomb setup to fit on the 9” MCX hand guard.
Possibly to allow for the use of other, larger mounting systems, the blast chamber on the MG10 is fairly large.
The Q Plan B mount looks right at home on the Rex Silentium MG10.
Range Time – Rex Silentium MG10
In search of subsonic silent Nirvana, I will overlook almost all other characteristics in a suppressor to get my fix. But it needs to perform. The reverse is true for hosts that will almost always be “loud” to some degree – like short barreled 5.56mm AR-15s. In this case, the MG10 would need the best possible test platform for quite shooting.
- Host: SIG Sauer MCX with 9” barrel – https://www.sigsauer.com/store/sig-mcx-virtus-pistol.html
- TFB’s Ultimate MCX Guide – https://www.thefirearmblog.com/blog/2019/11/26/sig-sauer-mcx-rifle/
- Trijicon ACOG TA33 300BLK BDC – https://www.trijicon.com/products/details/ta33-c-400162
- EOTechL3 ATPIAL-C – https://www.eotechinc.com/tactical-lights-lasers/atpial-anpeq-15-restricted-advanced-target-pointerilluminatoraiming-laser
- Ammunition: Discreet Ballistics 190gr Target Load – https://discreetballistics.com/shop/300-blackout-target-50/
I did notice a bit of first round pop with the MG10. Nothing drastic, but it is noticeable between squeezing off the first shot and second shot. Not a deal breaker by any means. I did have to open up the gas to the + setting on the MCX, possibly indicating a lower back pressure design.
As for suppression, the Rex Silentium MG10 delivers an extremely quiet and pleasant tone. It’s not the quietest 300BLK can I’ve personally experienced, but shooters will not be disappointed. The Discreet Ballistics and Rex combo allowed me to listen to the MCX action open and close – one of my non-scientific tests for acceptable subsonic ammo/suppressor shooting.
Superficially, I love the design and color of the MG10. It has a natural appearance without being too plain.
Overall I am impressed with the Rex Silentium MG10 – it is a quality built silencer that performs very well and has an attractive price point. The non-engineer in me wonders if adding an extra baffle or reducing the blast chamber size would alleviate the minimal FRP. It’s at the top end of weight an length specifications for its class, but certainly within manageable range.
With it’s performance, price, mounting options and aesthetics, no one will be disappointed in an MG10 investment. In a few weeks we’ll pull out the Rex Silentium MG7 and bring back the MG10 for some supersonic testing.
Thanks for joining us for another edition of TFB’s Silencer Saturday. Be safe and we’ll see you back here next week.
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