Description

Cartridge: 5.56 mm NATO
Finish: Black
Style: Stripped
Made in the USA

SKU#: 100-036-374WB

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Comments (20)

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So it doesn't crap up inside and will operate without a tube sicking out of the back? And a 5 lug bolt? Nice!

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Wonder why it is taking so long for Brownells to ship these. Been in pre-order status for several months. The stripped lower should be a lot more routine to manufacture than the BRN-180 upper, which logically needs a lot more engineering and testing before commercial sales. The upper has been for sale now for months.

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I just place 2 on order. When I asked, they said they couldn't tell me, but on the invoice it said Apr 10. And yes a dedicated 22 LR upper will work. I have both the Ar180S and CMMGs dedicated 22LR upper.

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These lowers are designed for the BRN-180 uppers, which fit a standard mil spec lower receiver. So that means that a mil spec upper will fit. Look at the Q&A on Brownells website, they say it will work with a 22lr setup and standard upper.

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Hmmm...will a SCAR stock adapter fit on this?

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Does anyone know of an ETA for these actually shipping?

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Could this be used for a 22lr build?

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I doubt you could do it with a .22 conversion bolt for an AR-15. Hit YouTube and search “AR-180” and watch a disassembly video.

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Don't see why not, the standard 22lr conversion bolt doesn't use the buffer tube anyway AFAIK. [NB: I'm only passing familiar w/ AR-22 conversions; you might want to get corroboration on that.] OTOH, why would you want to overpay for a lower? You can get a stripped AR lower now for ~ 1/3 the price of this unit, and all standard accessories will be cheap & plentiful, vs. specialized stuff for this only available single-source...

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This is a fair point, but - if it DOES work with a 22LR conversion kit - why wouldn't someone who wants a folding stock option do this over the Law Tactical folding stock adapter? This would be a less expensive option in the overall build.

That said, I don't know the 22LR conversion, either, so can't speak to that.

If someone wanted a piston-driven system with forged parts (unlike the original AR-18) and a fully folding stock, this is the lower to get.

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The Solo300 upper should fit well with this type of lower.

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The only advantage of the 180 is being able to put a folding stock on it and it still function. Had it been adopted it probably would have went through some changes. The M16 to M4 really isn't that much of a change. I wonder if the U.S. Military ever looked at the FN FNC. Had one of those and it was very nice.

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I assume this is to be used with bufferless AR systems?

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It’s an AR-180 lower receiver. It doesn’t use an AR-15 type buffer.

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More like an AR-15 lower without the threads to accept a buffer tube and a Sig MCX stock interface.
You CAN run other bufferless AR-15 uppers on this in addition to the BRN-180 uppers (like a .22LR upper for example)
AR-180 lowers cannot fit bufferless AR-15 uppers

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It's a brn180 lower which is an ar180 styled lower made specifically for the brn180 upper.

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Everybody is googling.... what's an AR-180?

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Basically a vastly better design than the AR15. Jim Sullivan and Eugene Stoner both agreed it was probably a much better design by Stoner, but the military had already invested too much into the -15 to actually consider the -18. Hint: look at the SCAR or Bren design

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The SCAR uses a tappet system more similar to the M1 carbine.

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I don't think so. Maybe in some elements, but the original is made from 80s lunch box tin. It was designed to be a 3rd world alternative to the ar15. I think the last commercial release had problems that brownelles solved. Personally I think the ar15 was way ahead of its time. If the ar didn't exist the ar18 looks like a progression towards the ar15. The ar18 is redundant in an ar or ak existing world. I think the wire stock t91 is a better rendering just my 2¢.

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