NOTE- STAG, YHM and DPMS uses a different thread on their 6.8s than everyone else, our 5/8-24 thread comps will not fit their barrels we do not sell any muzzle device that will fit those barrels.

Brakes or muzzle devices with large square or slotted ports on the side increase noise to the shooter and bystanders. They do reduce recoil but do not reduce muzzle climb as much as other devices on the market.  The Hill Rolling Thunder and SJC Titan have long been known to be the best full on competition brakes for 3 gun partly due to the top ports controlling muzzle climb and they have smaller side ports so the gases will exit the top ports, they are much more effective than those brakes with huge side ports. Brakes that have huge side ports and small top ports like the Rainer XTC and Bennie Cooley do little to control muzzle climb.

The 12 port brake is a full blown competition brake, it was designed with the priority being reducing the muzzle rise to zero along with reduced recoil for the fastest follow up shots while not being as loud as brake with large side ports.

The "NMR" brake was designed to eliminate muzzle rise with the least amount of noise. It does not reduce recoil as much as the 12 port but is not as loud.  It does not reduce flash as much as the 5X4 or MCD but does a better job of stopping muzzle rise.

The  5x4, MCD and NMR were designed to be quiet enough to hunt with out hearing protection first (HF hearing friendly) and then being a compromise on how much they reduced muzzle rise  and recoil.

The Tac Brake  was designed to cut muzzle blast to a minimum as a priority and reduce muzzle rise second but be a "brake" for those states that do not allow flash hiders of any kind.

Flash hiders are just that, none of them do anything to reduce recoil or muzzle rise but they do not increase noise to the shooter.

A very effective prong type flash hider similar to the Vortex, filmed from 2 ft in the dark side by side with the AAC Blackout and Smith Vortex along with our "Twisted", all of the 4 flash hiders reduced flash to a minimum glow where some devices and target crowned barrels produced a 10" ball of flame. None of the 4 flash hiders increased the noise to the shooter.

See the chart below for muzzle device performance comparison.

	1-10 higher number the better
device	flash reduction	recoil reduction	muzzle jump reduction	db produced
target crown	0	0	0%	81
A2	9	0	0%	81.2
Panther	9	0	0%	81.6
Vortex	10	0	0%	82
AAC Blaclout	10	0	0%	81.9
FSC30	7	8	30%	86.2
Titan	5	10	120%	84.2
Cooley	3	9	30%	85.7
lavang linear	1	3	10%	81.1
ITS Twisted	10	0	0%	81.4
ITS HF MCD	6	5	50%	82.4
ITS HF 5X4 MCD	9	5	50%	82.3
ITS 12 Port T- MCD	6	9	120%	83
Tac Brake	3	5	30%	82.4

A very effective closed end flash hider that will not snag on branches etc.  Filmed from 2 ft in the dark side by side with the AAC Blackout and Smith Vortex, along with our "Forked", all of the 4 flash hiders reduced flash to a minimum glow where some devices and target crowned barrels produced a 10" ball of flame. None of the 4 flash hiders increased the noise to the shooter.

This  5X4 has 1 full chamber  with 5 ports and 4 prongs, is .860 dia. and  2" long.  It reduces flash and has apx 50% recoil reduction and muzzle control, while not increasing noise to the shooter as much as a brake with big square side ports. 
 This device unlike most on the market, has top ports to counteract muzzle rise, where most brakes on the market have huge side ports that do increase noise to the shooter and do not reduce muzzle climb as much.  The HF 5X4 is suggested for those who like a pronged device that plan to hunt or shoot without hearing protection that want recoil reduction and muzzle control along with flash reduction while not being too loud.  These no longer have tapped ports  to keep the cost down.

Our own tests to find the one muzzle device that performs the best and is usable without hearing protection while hunting or on duty led us to the HF 5X4 which has the most flash reduction while reducing recoil and controling muzzle jump, and is the best all around choice for use without hearing protection.  

The Tac Brake was designed to reduce muzzle climb and recoil without the excessive blast like the brakes with big square side ports, great for LEO use when the rifle could be fired indoors and at a third of the cost of some comps that perform in a similar way, and is similar in performance to the Battle Comp. It reduces apx 50%  of the muzzle climb and recoil allowing for faster follow up shots. Instead of having one large chamber where turbulant gases may disrupt the bullet flight like other brakes on the market the Tac Brake was designed so the bullet holds the gases behind it only letting the high pressure gases exit the ports after the bullet has passed that row of ports. There are no ports on the bottom half so when fired from a prone position it will not stir up dust.  

Our best brake/muzzle control device - 12 ports for 3 gunners that wear hearing protection 100% of the time .
Machined from 440 stainless  or 8620, threaded 1/2 - 28 for  the 5.56- or 5/8-24 for the 6.8 and 308- 
It reduces recoil more and has more muzzle control  than any other muzzle device we have tested, and will actually push the muzzle down below the target for the fastest follow up shots possible.  .860 dia and 2" long
 

This brake rivals the SJC Titan and Hill Rolling thunder for control and the quickest double taps.

Stainless only

5.56 only----5/8-24 thread at this time, 1/2-28 later

Black River Tactical Linear Brake--Click on photo of brake to see more angles.