|Max caliber||.30 caliber, up to .300 RUM
|Diameter||1.85-inch OD (collar)
|Mounts||SR series brake (full spec)|
|Brake TPI's||1/2-28, 5/8-24, 9/16-24, 3/4-24, 3/4-28, M18x1.0, M18x1.5
|Finish||Black CeraKote; OD Green or FDE available|
|Brake Material||Heat-treated 17-4 stainless|
|Brake Finish||Ionbond DLC|
|Use||Hard-Use/Full-Auto & Precision/Long-range|
There is general confusion as to what firing schedules different suppressors on the market can actually withstand. There are "full auto"-rated suppressors that will fall apart after a few mags of full auto, and on the other hand, there are some "precision rifle suppressors" that will actually withstand a lot of abuse.
Lifetime to exceed at least 10 SURGE cycles on a 10.5" M4 / MK18.
One SOCOM/SURGE CYCLE comprises
Mag 1: 1 round/second
Mag 2: 2 rounds/second
Mag 3: 1 round/second
Mag 4: 3-5 round burst
Mag 5: 1 round/second
Mag 6: 2 rounds/second
Mag 7: 1 round/second
Mag 8: 1 continuous burst
Outlined in Section 3.6.1.i. in Solicitation H92222-17-R-0011
The basis for this is the SOCOM/SURGE specification, which is a common heavy firing schedule specified in many military solicitations. One SURGE cycle is 8 magazines fired in this pattern, with magazine changes happening as quickly as possible. After a full 8-magazine cycle, the suppressor and firearm is allowed to cool to ambient. This firing schedule significantly exceeds the worst-case application of assault rifles and baffle rifles. A milspec M4 needs service and inspection after each cycle to keep operating.
Most common 17-4 steel muzzle brakes will be eroded significantly or have critical surfaces destroyed after 2-4 SURGE cycles. How often has your firing schedule destroyed your muzzle brake? If the answer is never, you haven't even exceeded half of what this suppressor can take.
Suppressors in this category will still have minimum barrel length ratings for most cartridges.
The SR muzzle brake will have a replacement schedule if fired "to the letter" of this schedule. It is recommended that the SR brake be replaced when visible deformation of the brake ports happens, or the suppressor simply won't fit over the brake anymore.
Minimum barrel lengths:
|5.5"||.300 Blackout (subsonic and full power)|
|7.5"||6.8 SPC, 7.62x39|
|10.3"||223 Rem, 5.56, 6.5 Grendel|
|12.5"||.308 Win, .260 Rem, 6.5 Creedmoor|
|18"||6.5 SAUM, 6.5 PRC, 7mm RM, 7mm WSM, .300 WIN MAG, .300 WSM|
|20"||7mm RUM, .300 RUM|
|22"||.300 Norma Magnum, 28 Nosler, 7 STW, 26 Nosler|
Mile High Shooting Accessories (MHSA) will only ship suppressors to Class III FFL holders. BATF regulation information for Suppressor ownership are as follows:
Be at least 21 years of age.
Be a U.S. citizen.
Have no felony convictions or domestic violence convictions.
Have no dishonorable discharge.
Not deemed mentally unstable by a competent authority.
The NFA rules/laws are posted through the BATF website. At this time, the following states ALLOW private ownership of suppressors: AL, AK, AR, AZ, CO, CT, FL, GA, IA, ID, IN, KS, KY, LA, ME, MD, MI, MN, MO, MS, MT, NC, NE, ND, NV, NH, NM, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WV, WI, and WY. CA allows class 3 dealers and class two manufacturers to possess suppressors.