Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
I know they are low back pressure relative to the many other cans I’ve shot based on direct comparison to said other cans. The signs and symptoms of high back pressure are not a mystery. My personal criteria for center fire rifle cans are the mount design, back pressure, repeatability, FA capability (where applicable), then sound reduction. Chasing dB results in higher back pressure.
SLG Defense 07/02 FFL/SOT
Yes, it seems like that model has been reborn as the MG7k 224.
https://www.rexsilentium.com/MG7-K-R...224-p148947022
Got one on the way.
Good to hear that it does a nice job with the sound.
How is the Back Pressure?
Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
Thread 'jack if you guys would educate me. As a general rule, will you get more back pressure on a suppressed SBR than a 14.5 or longer? I'm new to cans and just got my Sandman-S out of jail last week, thanks.
"Think you used enough dynamite there Butch?"
The effect of a suppressor will vary depending on gas system configuration and barrel length.
In general you will get more increase in cyclic rate from the shorter barrels than longer ones because the muzzle pressure is higher and powder may still be burning.
Often times, you can get really nice mixed suppressed use from 14.5 or longer barrels.
The shorter barrels don't generally do it as nicely and can really benefit from dedicated suppressed configurations.
Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
You also get a lot of unburnt powder that can cause flash especially in 10.5" barrels. You generally get full powder burn out of a 12.5" and up barrel. That is one of the main benefits to Surefire cans is their lack of signature.
Muzzle flash isn't from unburned powder. It's from high pressure superheated flammable gas igniting when mixing suddenly with fresh oxygen. If the muzzle flash was caused by unburned powder, flash suppressors would not work.
Last edited by MistWolf; 03-01-20 at 21:25.
The number of folks on my Full Of Shit list grows everyday
I am American
Last edited by mig1nc; 03-02-20 at 04:34.
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