Lynx 180B Upper Receiver Info Thread

You will make a bunch of sales if you make an upper that uses M C X upper parts - barrel, BGC, charging handle and handguard.

Yes, 2000+ MC X owners will just transfer their parts to the new upper. M CX is essentially an AR18 system put into an AR upper.

Right the way, you will get one of the most refined and reliable upper in the market. SIG did the engineering for you.

Another clue, ZM LR300 designed by Allan Zitta.
 
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Is the upcoming gas tube fed BCG from SBI going to use a Stoner pseudo piston, meaning gas is expelled out holes in the side of the BCG after it is used to push the 180 recoil harvesting system and it has rotated the bolt in the BCG, or will it be true direct impingement, meaning all the exhaust is pushed into a blind hole in the BCG, with the gases would escape into the receiver after the BCG was pushed back? Thanks!
 
Ustauk said:
Is the upcoming gas tube fed BCG from SBI going to use a Stoner pseudo piston, meaning gas is expelled out holes in the side of the BCG after it is used to push the 180 recoil harvesting system and it has rotated the bolt in the BCG, or will it be true direct impingement, meaning all the exhaust is pushed into a blind hole in the BCG, with the gases would escape into the receiver after the BCG was pushed back? Thanks!
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We'll post more info about our BCG when we have a working prototype.

As for how the upper is coming along, the geometry is dialed in and we're figuring out final design and production. Expect more soon.
 
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Cards close to your chest, fair enough, looking forward to more info when its available, thanks for the response!
 
Just put a deposit on your lower. I’ve been holding out until you released your upper. Now seems like it’s very close to that time.

I haven’t been this excited for a receiver set since the MS was released. Definitely going to go with a right charge/right ejection… peak aesthetics

Keep up the excellent work, I wish you lots of success.
 
I’m holding out for the upper as well but it’s so tempting to just buy the wk upper and be done.

Must control myself… lol
 
greentips said:
You will make a bunch of sales if you make an upper that uses M C X upper parts - barrel, BGC, charging handle and handguard.

Yes, 2000+ MC X owners will just transfer their parts to the new upper. M CX is essentially an AR18 system put into an AR upper.

Right the way, you will get one of the most refined and reliable upper in the market. SIG did the engineering for you.

Another clue, ZM LR300 designed by Allan Zitta.
Click to expand...
I really want an MC-X upper! To go with my new lower.

This would be excellent.
 
james_o said:
Will the DI/system bolt be compatible with your piston upper?
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It has been stated previously by SBI that while upcoming DI BCG will work with the WK or MCR standard upper, it was designed for and will work best with the SBI Lynx 180 Upper.
 
Ustauk said:
It would have to be side charging to work in existing WK and MCR uppers in addition to its best choice, the Lynx upper.
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Yes ,I should have known better.. lol
I’ve looking at all the options, today.
One place has 3 diff options, plus a couple more elsewhere also.
I get confused ��

Well , no rear CH, oh well, at least DI though.
 
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