I think there are some really solid choices for suppressors on the market now, and thats a good thing. Ive also noticed that "low back pressure" is a term that gets tossed around a lot more than it was even 2 years ago. Im not an engineer or designer, so Im certain there are a lot of very smart folks who work for suppressor companies - but for us, we kind of ran into the "low back pressure" scale by accident when moving our suppressors around on rifles that had factory adjustable gas systems.
Full Disclosure:
We are an LE dealer, so we demo and sell most major brands of equipment to agencies. This is important to Keep that in mind, because our only customers (agencies) want to leave equipment stock, want no drama, no mods, no "fixes", and they under NO circumstances want to go back and ask for more money to fix the shit the first pile of money broke. (our sbrs worked great...until we spent money and suppressed them). Private buyers have no issue making changes and adding charging handles, etc to their rifles to get their "perfect" solution...thats just not our focus, and its not our customers.
As to your specific MWS question: There are only 2 suppressors that I will now run on the LMT MWS - OSS and LMT. For 762s, we have 4 MWS rifles (16" and 13.5") in our eval lineup and one 16" Larue - we've used Gemtech, Dead Air, Surefire, and SilencerCo suppressors on all of them and for a time let departments shoot them that way too...now we just keep the OSS on them full time except the LMT on one 16" MWS. The Larue has a factory adjustable gas block - I think It shoots pretty well with the SF RC762, but still the guy who instructs with it will only mount an OSS. He says there's a difference and that he will run his Larue with and OSS on the Unsuppressed setting instead of a Surefire/Dead Air/etc on the rifle in the Suppressed setting - his rifle, and hes a group guy so I defer to him on that.
Our eval shooters really feel that lower recoil impulse and less shit in their face makes it much easier to keep their target in FOV on their HPV optic when running OSS. I do think the LMT is close, but its quite a bit heavier and only comes in an OTB model so you're more limited for options. last fall we had a metro swat team evaluate equipment for entry teams and patrol rifles, but they weren't in the market for 762 suppressors until they worked some drills with our MWSs with OSS. the MWS 13.5s with OSSs ran quieter and smoother than their current 16" AR10s wearing baffled suppressors. (they have quality rifles with adjustable gas blocks too).
We shoot a lot more 556/223 - probably 20x the number of 556/223 rounds through eval rifles compared to 762/308. Agencies also are running very heavy 556 vs 762 at evals so thats where the bulk of our observations are. the 762 guys are very deliberative in their evals and those take longer because the distances they shoot at demand it.
I like a lot of suppressors - there are solid suppressor manufacturers out there and customers have multiple reasons to choose one over the another (current mounts, redundancy of parts/brands, familiarity, etc). I will definitely watch how the newer KAC and SIG models tackle back pressure this year since that seems to be a major focus of their marketing.
IF youre talking about the MWS specifically and are open to any brand, I wouldn't run it with anything right now but the OSS. OSS seems to be rolling up mil contracts lately, and for LE that eval all our equipment, OSS has been the choice almost 100% since the new models came out 2 years ago.
our website sucks (this is a part time gig remember), but we store pics on IG (when we remember) where you can see LE evals and specifically some of the MWS rifles you asked about.
www.sentinelmn.com
www.instagram.com/sentinel.mn
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