Could it be done? I would think so. If the bolt was trimmed down so that enough mass was reduced to account the mass for the sear catch. Such a catch could be a separate weight attached to the bolt with a light spring to separate the bolt from the firing pin/sear catch. I just don't know if the bolt could be lightened enough to cover the mass of lightened bolt and firing pin/sear catch combination. If not the whole kit would need to be redesigned.
The problem is, there are only a couple of hundred possible buyers of such a kit. Of those possible buyers, how many would be actual buyers? Ten or 20 buyers seems like a very small pool to cover R&D costs. I also think that sucha small pool of possible not be interested in the cost of such a kit being five or ten times the cost of the original kit. My opinion is that this would not be an easy conversion of the original kit. I would think that a .22lr kit similar to what Lage made for original upper would have a much bigger potential customer pool than a .22lr kit for the Max-/15 owners. Just my opinion.
Scott
The cmmg and similar 22 kits, the bolt and mainspring is self contained and requires nothing from the AR mainspring or buffer tube. In this case it would require nothing from the lage mainspring.
It occupies the space of the ar bolt group.
A sear-linkage would have to be welded to the bolt to interact back from the bolt carrier area to the Mac sear.
That’s the easy part.
It could operate like an open bolt using its own mainspring system (assuming the sear-linkage weight didn’t have adverse affects), but the firing pin issue is the hard part as noted above.
These kits work fine in m16s (with the cmmg extra parts) but they are closed bolt and aren’t modified with the sear linkages.
According to my research, the Franklin armory binary triggers work w cmmg and practical solution 22 kits in an AR.
You don’t need the buffer tube, so a folder stock or brace on an ar22 dedicated to 22 makes a nice compact package (but then the lower is 22 only).
