Just got an email for the BCM MK2 RMS. Sure looks like the A5 system, including the description of a spring holding the buffer in place.
Anybody have details on this?
That confused me too.
edit: Read it wrong. M16 spring and their RE.
It looks like Eric Kincel came up with a new spring system that improved on his A5 design and is not covered by that patent.
He used to work at Vltor and now works at BCM.
Someone send me a link to it.
Never mind… I found it. Sounds like a whole lot of nothing to me. Like the A5 setup… Probably takes about 5 minutes to forget it’s in there! For recoil mitigation… Give me an effective comp. I don’t really care if the guys at the range like me or not.
I have them sitting next to me, what details were you looking for? I’m honestly not sure what I can add to the email, but fire away.
What about the spring looks different?
Is the 8-position tube compatible with A5 guts? If braces somehow survive this round of ATF BS I may want to use one of these on a 12.5" I’m doodling. (It may be a 13.7 if I can find one that length with CAR gas and an FSB… why does every rail have to jump straight from 10" to 12.5"?)
I’m confused how this is at all different than the A5. Are they just trying to get around patent royalties?
Like some others have asked, mostly confused on what it is vs the A5. The BCM intermediate tube was compatible with the A5 buffers, so is this just BCM making A5 buffers, or is this a whole new system?
If a new system, what kind of improvements does it offer over the A5 system?
Just so everyone is clear, I’m talking about the spring inside the buffer. This is the patented feature of both.
The MK2 patent shows a spring that is the full diameter of the inside of the buffer. The A5 uses a smaller spring in a counterbore of the last buffer weight.
The recoil spring used is a standard rifle spring just like the A5. Buffers and receiver extensions should be compatible to mix and match between MK2 and A5.
The advantage is another source. Perhaps the larger diameter spring has a longer service life, but I don’t think I’ve ever head of an A5 failure.
You can take the spring out of the buffer and it will be more reliable with marginal springs and gi mags.
Done some pre-release testing on BCM’s new product?
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Interesting that BCM drops stuff with so little fanfare.
Their redesigned flash comps have been out a while now and I’ve seen essentially no chatter or advertising.
Stick, do you know if they plan to sell this recoil mitigation system on complete lowers anytime soon?
A larger diameter spring seems like a good cost saving measure if now one of the weights does not need to be drilled. All weights are interchangeable.
Also the literature mentions length of travel of the weights. Maybe they have more travel than an a5 buffer?
Either way I think it’s likely a marginal or nonexistent improvement over the A5 so they could get around vltors patent and make their own a5 buffers.
Or information. I recently bought a new A5 RE and buffer but was looking at these, I passed as there just isn’t much published info about them. And I’m not sure how much recoil mitigation I need using 5.56
I just did the same thing, I was pretty sure it was the same dimensions of an A5 but just went with a regular A5 RE and A5H2.
I already have a drawer of stuff that I either didn’t fully read the description or it wasn’t what I thought it was.
Yeah. I didn’t even know they redid them.
Smoother shooting guns can be shot WAY faster for me. I start missing shot 2 on hammered pairs with a snappy AR.