The 30CB5 was discontinued January 2015 and replaced with the ULTRA 5.
Click here to proceed to the ULTRA 5 specs page.

The model 30CB5 is the new "Compact Brake"-attach version of our 30PSS moderator. It is an extremely compact moderator intended primarily for for subsonic .30 caliber loads. It is also a good choice when the most important priority is adding the absolute minimum length and weight to the rifle while still significantly moderating the muzzle report. Compared to our flagship 30P-1, it is about half the weight (9.6 oz), four inches shorter, and approximately 10 dB louder when using full power .308 ammunition.

The way to interpret the model number for the 30CB5 is: .30 caliber, COMPACT BRAKE, 5-inch long (super compact - subsonic/moderator)

The "CB" series suppressors to mount over our new compact brake and provide the same repeatability as our direct thread attach suppressors, like the 30P-1. The 30CB7 features a conical shoulder for rock solid POI repeatability and to make sure it never comes loose.

The 30CB5 is ideal for .300 Whisper or Blackout rifles using subsonic loads. It is rated for full power .30 caliber cartridges up to .300 Winchester Magnum, but is in its element with subsonic or low-power capacity cartridges when only the absolutely smallest sound moderator can be tolerated.

The 30CB5 is constructed of titanium with a fully-welded baffle core. This material and construction provides a great strength to weight ratio. It can take whatever your precision rifle can dish out.

Special Features

New Compact Brake for .223 up to .30 caliber rifles
Ionbond DLC coating on CB muzzle devices
Brake-in-suppressor design
Conical shoulder surface
100% titanium construction
360-degree fully-welded baffle core
Helical Baffle Technology
Rock-Solid POI Repeatability

Application Notes

This suppressor is strength-rated for 6.5-284, 7mm Rem Mag, 7mm WSM, .300 Win Mag. Not for use with magnum cartridges with barrel lengths shorter than 22 inches. 7 mm Magnums OK not to exceed 72 grains powder. .30 cal Magnums OK not to exceed 82 grains powder. Minimum barrel length for .308 is 16". Minimum barrel length for .223/5.56 is 14.5" For questions about a particular rifle/load combination please contact us.


(Logo colored red for illustration purposes only)
"CB" series brakes will be available in early June.


Caliber .30 caliber, up to .300 Winchester Magnum
Material Titanium
Length 5 inches.
Diameter 1.5 inches.
Weight 9.6 ounces (varies with thread pattern)
Brake Threads 1/2-28*, 5/8-24, 9/16-24, 3/4-24, 3/4-28, M18x1.0, M18x1.5
* Note: The 1/2-28 brake is part number 223CB-BRK:1/2-28 and has a .223 caliber aperture!
Finish Black CeraKote; OD Green or FDE available
Brake Finish Ionbond DLC
Use Subsonic or low power capacity .30 caliber
Price $845 (one brake included).
Extra brakes $125/ea
"CB" External thread protector, $35
  (not included - sold separately)


30CB Brake
Each brake includes one peel washer

30CB External Thread Protector

Extra Peel Washers
Peel washers have an O.D. of 0.840-0.845"
and an initial thickness of approx 0.048-0.055".