Silencer Saturday: Suppressing Rimfire With The Rex Silentium SEG

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SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

Welcome back to another edition of TFB’s Silencer Saturday, where suppressed shooting is the most polite form of social distancing. Last week we discussed the utility of defensive suppressors, but this week I thought we could turn back to some pure wholesome fun – suppressing rimfire rifles and pistols. Rex Silentium was nice enough to let me borrow three silencers: the MG10 7.62mm rifle suppressor (reviewed – thumbs up), the MG7 .224 rifle suppressor (review pending) and the SEG modular rimfire suppressor. You’re sick of hearing me say it, but I don’t care: suppressed rimfire is life. So did the Rex Silentium SEG live up to my high expectations? Let’s a look .

Don’t forget to catch up with TFB’s Rimfire Report hosted by our very own Luke C.

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

Modular silencers have enjoyed a burst of renewed interest in the last few years. The ability to shorten or lengthen one suppressor addresses several NFA challenges. For one, for those that want to own only ones silencer for a particular caliber, a modular model will give you options. A modular suppressor is also adaptable for a variety of hosts – micro pistols will benefit from a short suppressor, while rifles geared towards optimizing sound suppression will benefit from a longer suppressor. Where I think modularity in the silencer world makes the most sense is in the rimfire calibers.

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

Unlike suppressing centerfire/supersonic cartridges, I have high expectations when suppressing subsonic rimfire rounds. This is one of the few times that I prioritize decibel reduction over most other features.

Store

  • MSRP: $299 ($249 Sale)
  • Rated for: 22LR, 22WMR, 17HMR, 17WSM, 5.7×28 (no barrel length restrictions)
  • Configuration Lengths: 6.75″, 4.5″, 2.25″
  • Configurations Weights: 6.6oz, 4.2oz, 3.1oz
  • 2x Hardened 17-4 SS Primary Segment (hardened to 190,000 PSI tensile strength)
  • Aluminium baffles x6
  • Baffles seal to each other to minimize carbon buildup in the segments (easy disassembly for cleaning)
  • Repairable High-Strength High-Temperature Silicone Rubber Cap Wipe (McMaster-Carr item 5787T63 and Punch 3427a17)
  • Full Auto rated for 22LR
  • 100% no-fault warranty,

Rex Silentium – SEG Disassembly And Parts

The front end cap unscrews with a box wrench or socket. The wipe is attached to the end cap with an adhesive .

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

The extended sections of the SEG contain aluminum baffles with clips/mouse holes.

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

The mount, blast chamber and blast baffles are made from stainless steel.

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

The remaining two sections are made from aluminum.

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

The SEG is held together by sandwiching the baffles between the end caps and the middle thread section.

SEG Description- RexSilentium.com

The SEG represents the evolution of many unique development cycles to find the intersection of suppression, simplicity and economy. Configurable into one of three lengths, no special tools needed for maintenance or reconfiguration. A common 3/4″ wrench or socket is all that is needed. Built from hardened 17-4 Stainless Steel (190KSI tensile strength) and 7075 Aluminum, it can take a hell of a beating. Did we mention quiet? In its full length configuration it is impressively quiet across the full range of 22 and 17 caliber rimfirecartridges.

Why segments? Mission Configuration of course!

The primary segment is engraved at the very back giving it maximum survivability in the event of a baffle strike or other failure. The first two baffles are hardened 17-4 stainless steel as these baffles take the brunt of the high velocity gasses and abrasion from carbon. These stainless steel baffles protect the aluminum baffles that follow them. With proper service and baffle rotations, the SEG suppressor with provide a lifetime of hearing protection. A 100% no-fault lifetime warranty comes standard, as with all of our products.

For best and critical suppression, use the shortest barrel available with standard velocity 22LR. Keep it clean and remember that after cleaning use some ablative gel (petroleum jelly or similar) on all internal parts before reassembly. The wipe can easily be replaced as a repair item by you or a gunsmith.


Rex Silentium SEG – Test Hosts and Ammunition

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

Ruger Precision Rimfire Bolt Action Rifle

https://www.ruger.com/products/precisionRimfire/specSheets/8400.html

  • Stock: Quick-Fit Precision Rimfire Adjustable
  • Capacity: 15
  • Barrel Length: 18″
  • Overall Length: 35.13″38.63″
  • Grip: AR-Pattern
  • Handguard: Free-Float With Magpul® M-LOK® Slots
  • Handguard Finish: Black, Hard-Coat Anodized
  • Thread Pattern: 1/2″-28
  • Length of Pull: 12″15.50″
  • Sights: None-Rail Installed
  • Barrel: Threaded Cold Hammer-Forged 1137 Alloy Steel
  • Weight: 6.8 lb.
  • Twist: 1:16″ RH
  • Grooves: 6
  • UPC: 7-36676-08400-5
  • MSRP: $529.00
SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

GLOCK 44 – .22LR

https://us.glock.com/en/pistols/g44

  • Length (Overall)** 185 mm | 7.28 inch
  • Slide Length 174 mm | 6.85 inch
  • Width (Overall) 32 mm | 1.26 inch
  • Slide Width 25,5 mm | 1.00 inch
  • Height incl.Mag. 128 mm | 5.04 inch
  • Line of Sight (Polymer) 153 mm | 6.02 inch
    • 158 mm | 6.22 inch (adjustable)
    • Line of Sight (Steel) 152 mm | 5.98 inch
    • Line of Sight (GNS) 151 mm | 5.94 inch
  • MSRP: $430

Ammunition:

Lapua Midas + (I bought mine at Brownells)

Rex Silentium SEG – Observations

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

SILENCER SATURDAY #118: Suppressing Rimfire With The Rex Silentium SEG

The SEG met my expectations for sound reduction. It was awesomely quiet on the Ruger RPR and the GLOCK 44 in its full length configuration.

Here’s what I liked:

  • Excellent suppression – very quiet on both the rifle and pistol hosts.
  • Baffle shielding – the baffles slid right out with no sign of powder debris leakage.
  • Price – $249 is a great value for a modular suppressor.

Here’s what I feel may need some improvement:

  • Overall design:
    • The blast section and the middle section are held together with a threaded insert. It can be difficult to remove from either section since there are no wrench flats or bearing surfaces.
    • The wipe is initially held in place with an adhesive and is not retained by a baffle or locking ring. Mine was dislodged in the forward section after a few shots.
    • The baffles have no way to maintain alignment.
      • Although I intentionally moved the clip alignment and still maintained the same POA/POI.

Overall, the suppression levels were great at full length, good at mid length and ok in the short length (to be expected). If you are comfortable with some moderate assembly/disassembly frustrations, the price and the excellent suppression of the SEG is worth a look.

Thanks for reading TFB’s Silencer Saturday. Be safe, stay healthy and we’ll see you here next week.


Silencer Saturday is Sponsored by Yankee Hill Machine:

Buy YHM silencers and accessories at:

Silencer Shop – Hansohn BrOthers – dead eye gun supply –

Mac tactical

All YHM Products At Brownells

DEALERS: If you want your link to buy YHM suppressors included in future Silencer Saturday posts, email: silencers@thefirearmblog.com


special Thanks: Mac Tactical





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