Not NYS legal (yet) but maybe an out of state purchase is warranted?
metatactical.com

MX-1 Conversion Kit - All In One Chassis for Glock, P80, & PSA Dagger
Are you ready to buy our MX-1 Conversion Kit - All In One Chassis for Glock, P80, & PSA Dagger . We also have other that you may need in your support of the 2nd Amendment.
