Innovative ArmsGrunt-M 5.56
5.56mm / .223 suppressor · 1/2x28 Direct Thread interface · specs and compatibility from the manufacturer
Notable features
- TBAC Summit Tested
- Full-Auto Rated
- Direct Thread
length
5″
weight
13oz
length
5″
weight
13oz
calibers
5.56
material
Steel
interface
1/2x28 Direct Thread
- Overall length
- 5″
- Class
- 5.56mm / .223
- n
- 328
- Range
- 2.5″–9.75″
- Median
- 6.12″
- Diameter
- 1.5″
- Weight
- 13 oz
- Material
- Stainless Steel
- Max caliber
- 5.56mm
- Base interface
- 1/2x28 Direct Thread
- Front cap
- Fixed
- Full-auto rated
- Yes
Shorter than most 5.56mm / .223 suppressors
Length compared against the 328 5.56mm / .223 suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Not published by the manufacturer: MSRP.
Mount interface: 1/2x28 Direct Thread. It threads straight onto the barrel, so no mount or muzzle device is involved.
The Thunder Beast Silencer Summit fires every suppressor entered on the same gun, on the same day, with the same equipment. Grunt-M 5.56 was measured in 1 test. Figures can only be compared with others from the same test, so each one links to everything else fired on that gun.
Gas-operated rifles and carbines
Measurements published by Thunder Beast Arms Corp. How to read these
Manufacturer claim
- Sound reduction is rated at 23-28 dB dry.
- At only 5 inches, the Grunt-M (mini) is the compact micro version of the 6.25" Grunt, with the same patented one-piece core and no internal welds.
- It is designed specifically for security forces making entries who need to stay compact while keeping impressive sound and flash reduction.