![]() To wit, even though the Mk12 brake is the 1215KM’s inspiration, it is still an FCD design, we did not use most of the Mk12 brake’s features. The real surprise is 1215KM’s performance. The one we know to be the most offensive was as loud, concussive and obnoxious as ever. Flash suppressors are the least concussive. We tested the 1210KM against a host of brakes and flash suppressors. It does what it’s designed to do, and does so without making unsubstantiated claims. 1210KM follows our design philosophy, it’s a simple and effective brake. In our experience, Knight’s Armament’s MAM brake is probably the best in that category, it’s also very costly. To make a brake less offensive is far more difficult. If one is to look at old tank gun brakes, he will soon realize these tank gun brakes and most muzzle brakes for small arms today bear surprising resemblances and design. In the old days, some tank guns brakes are nothing more elaborate than a tube mounted perpendicular to the bore forming a T shape, it doesn’t take much to make a brake that works. In terms of felt recoil reduction, most brakes are similar in performance. 1210KM is meant to be used with a Dead Air sound suppressor attached.ġ210KM is designed to have less concussion than most brakes. Let’s do away with ambiguities and insinuations as to what it is and what it does, 1210KM is a brake, it’ll be loud, and its concussion will kick up dust visible from the next county if you shoot it from a prone position without a sound suppressor. The tines on top and bottom that connect the Keymo mount to the front chamber are of symmetrical, we think a smaller/thinner top tine to force more gas upward is unnecessary. For this reason, there won’t be a 1215 or 1210 (sans the Dead Air Keymo mount interface), 1215 design will solely reside on 1215KM (1/2×28) and 1210KM (5/8×24).ġ210KM is a single chamber brake, with a baffle like chamber forward of the ports (dear ATF, this does nothing to reduce the decibel). That said, a brake for a sound suppressor does have its use as a sacrificial first baffle to increase the longevity of a sound suppressor. While a brake will reduce felt recoil, it has unjustifiable compromises in increased concussion, noise and flash signature, one also wouldn’t want to use a brake from inside a vehicle or indoors, these are trade offs a flash suppressor doesn’t have. I also wonder what actually happens when the can "fails".We don’t like brakes for ARs, they’re loud and obnoxious. I imagine this is not a normal industry standard, as I've never heard any manufacturer say something like this about their cans. I don't know how many rounds they consider this to be for a 16" 5.56 AR, but it seems like a lot of money for something that won't last. Any thoughts on those, or reason they didn't make the cut? I shoot long guns lefty so the less back pressure(and thus the less gas in my face) the better.Īlso, do you(or anyone else) have experience with the 3D printed Delta P Need is cans? I'd really like one of those for my HD gun, but I'm concerned about the simple direct thread only way it attatches(unless I perhaps rocksett it or something, which I don't really want to do), the high price, and the fact that the manufacturer saus(or at least used to say) that the life of the silencer is about the same as the life of a barrel. ![]() I just bought my first can(an OSS Helix 5.56K, still in NFA prison), and have heard multiple people(including Tim from Military Arms Channel say they are his favorite silencers. Want some semi-scientific data? We brought all the listed suppressors out to the range and hooked up a Larson Davis SoundTrack LxT-QPR sound level reader.įor this article we used a Daniel Defense MK18 full-auto utilizing Wolf Gold 5.56 ammo. 30 multi-caliber ones since they can be used on multiple guns. Without further ado…we’re going to be looking at two flavors of suppressors…one specific for the AR-15 5.56 caliber…and also multi-caliber suppressors that can be used from everything rimfire through. Check out the $79 option through GunTrustGuru hosted on Capitol Armory (one of our fav places to buy suppressors). Getting a stamp and everything is relatively easy and we recommend doing it through a gun trust. None more so than the suppressor, at least in terms of purchasing a new NFA item. With the cost of a stamp being so low, NFA items have increased in popularity. Two hundred dollars these days isn’t pocket change, but its a lot more affordable now than it was in 1934. In 1934 that was a lot of money for a suppressor tax stamp and this restricted the ownership of these items to the rich ($200 in 1934 had the buying power of $3,800 today). One example is the value of $200 dollars. We’ve had a few significant changes since 1934. Our Faces When the NFA was Passed (if we had been alive in 1934)
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