Mirage M-1 tweeter died, No longer stock. Help

I just picked up a pair of M5si to match the M3si fronts in a HT rig and they also have 3 blown tweeters. Sent an e-mail to Chris at ABI to see if he can source the replacement parts for me. Great to see the M series are still making people happy.

I think the M-1 uses the same tweeter as the M-3. I purchased a pair of M-3's with both tweeters blown on the right channel. My speakers are the original M-3, not the M-3si. M-3 uses 8 ohm drivers, M-3si uses 4 ohm drivers. I couldn't find OEM replacements for my M-3's tweeters and was considering retrofitting with an Audax tweeter from Madisound when I stumbled across a listing on eBay for an Acoustic Research tweeter that vaguely looked similar to the M-3's tweeter.

The eBay seller only had one and didn't accept returns. However, I found the same model on Parts Express' website. The screw patterns looked similar and it looked like it had the same circuit-board flange mounted terminals of the OEM Mirage M-3 tweeter. On a hunch that the AR tweeter's plastic housing could be removed, I bought a pair.
https://www.parts-express.com/acoustic-research-1210128-oa-3-4-fabric-dome-tweeter--299-2036

It turns out that the plastic housing lifts right off when the 3 screws are removed, and below it is an exact replica of the M-3 tweeter, right down to the 2 dowel pins that align and pin the voice coil/dome assembly to the magnet structure. This entire tweeter bolts up to the M-3 tweeter housing using the same 3 screws. This replacement unit features a metalized dome, whereas the OEM unit is not metalized. Mechanically, this is a drop-in replacement. When installed, the speaker with the replacement tweeters sound exactly like the other channel with the OEM tweeters.Joy!

NGD Service in Montreal should have all the replacement parts for Mirage and quite a few other makes.  http://www.ndgservice.ca/parts_en.php?lang=en