Lynx 180B Upper Receiver Info Thread

If one wanted to build from scratch, where are buying the guts like BCG?

Until SBI is ready to produce its own receiver internal parts (you can get the buffer tube, stock, pistol grip, and muzzle device from SBI), you could order the rest of the parts from True North Arms (everything else) and Third Echelon (upgraded BCG and mid length piston).
 
Here's what the upper looks like on our Lynx 180B Lower

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Of course it is preferable to use the Lynx lower, but would the Lynx upper fit a standard WK lower in or a made for WK Spec 180 lower?
 
There's plenty of people with lowers of other types who'd be happy to buy your upper if we can at least get a "yes it fits but we don't officially support it" type statement.

It is understandable if SBI wants to hold off testing this scenario until they give all Lynx lower buyers a reasonable time period to buy Lynx uppers first.
 
I mean it's called the "lynx 180b upper" for a reason. It wasn't designed to fit any other lower. Doesn't mean it won't fit but doesn't mean it will work well even if it does either. If they haven't done testing on it so it's understandable they can't just give you a yes or no. It's just not that simple.
 
There's plenty of people with lowers of other types who'd be happy to buy your upper if we can at least get a "yes it fits but we don't officially support it" type statement.

Due to variances in other lowers we can even say it fits. So officially it's only for the Lynx 180B. If you put it on a different lower maybe it will work, maybe it wont.
 
It is understandable if SBI wants to hold off testing this scenario until they give all Lynx lower buyers a reasonable time period to buy Lynx uppers first.

So they should hold back sales waiting on bub to make up his mind??
 
So they should hold back sales waiting on bub to make up his mind??

I can’t see that holding back sales. There are a ton of guys (myself included) who bought the lower and I think they won’t have any issues selling out their first run within a short period of time. Once these guys complete their builds, info will become available as to the compatibility with other lowers. Just how see it
 
I can’t see that holding back sales. There are a ton of guys (myself included) who bought the lower and I think they won’t have any issues selling out their first run within a short period of time. Once these guys complete their builds, info will become available as to the compatibility with other lowers. Just how see it

Ditto
 
Due to variances in other lowers we can even say it fits. So officially it's only for the Lynx 180B. If you put it on a different lower maybe it will work, maybe it wont.

Fair enough, SBI can only provide support over what products SBI makes. If someone wants to try something else, they do so at their own risk, and their mileage may vary :p
 
Can’t wait for this one to come out. If I still have a WK by the time I get this I will try the Lynx upper on a WK lower.
 
Stripped upper only. BCGs are not available yet.

Is the stripped upper compatible with all WK-180C upper components (barrel, BCG, etc), or is it proprietary? Because there is another retailer on here that sells WK-180C parts and I'd be happy to buy a stripped receiver set from you guys and then just finish it with "standard" components.
 
Is the stripped upper compatible with all WK-180C upper components (barrel, BCG, etc), or is it proprietary? Because there is another retailer on here that sells WK-180C parts and I'd be happy to buy a stripped receiver set from you guys and then just finish it with "standard" components.

It's compatible with both WK and MCR components.
 
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