From the New York Rifle & Pistol Association (NYSRPA) website:
NYSRPA, in co-operation with the NRA, are having the Cuomo law reviewed by a highly qualified legal team. We ask that no other 3rd party legal action be taken without prior consultation. We realize that this law impacts a large number of people, but a proper legal review will take some time. NYSRPA/NRA will be filing a Notice of Claim prior to submitting a brief on the merits of the constitutionality of the new gun law. Involved in the lawsuit will be two of the nations best 2nd Amendment attorneys. This is a very important proceeding and must be handled properly with the best lawyers. We will not win without support from gun owners. You can help either by joining/renewing your membership or making a[n] online donation.