CarsonTech,
To be fair to Magpul, they are cutting off sales to LEO/MIL in ban states. I am reserving judgement until I see what their final policy is. For example, SilencerCo will sell suppressors to LEO in states where citizens cannot possess them... but only if the Chief Law Enforcement Officer publishes an official statement on official letterhead explaining that silencers are beneficial and should be legal for all citizens, which can then be used in lobbying efforts against that state's legislature.
I would be ok with a similar corporate policy from Magpul, requiring individual officers or their Chief to explain the usefulness of standard capacity magazines, denounce the mag ban, and publicly state that they will not enforce it--in a public statement to be used for advocacy purposes.
Otherwise, I tend to agree with you. I do NOT supporting arming New York Cops (or cops in any ban state) with anything that any other civilian cannot own. Six shooters and riot guns worked just fine for the NYPD for many years, and if that is all the citizens need, then that is all the civilian police force needs. I personally will be rewarding companies like LaRue, Spikes, Wilson, and many others that are not selling to LEO in ban states. After all -- when Armalite sends a rifle to the NYSP, that rifle may be used in a SWAT raid over an undocumented rifle.
I disagree with "mass defections" being a problem. If you show up to the range, right now, today, with an "undocumented" (no NFA tax stamp) short barrel machine gun and do a few mag dumps, do you think a cop will "look the other way?" Why do you think it will be any different with undocumented assault weapons in New York or California or any other jurisdictions? Nathan Haddad -- a US Army disabled veteran who just won an award from Ft Drum for volunteerism -- is facing multiple felony counts for possession of standard capacity magazines in New York. How many police officers and Coast Guardsman and other uniformed enforcement officials resigned when guns were confiscated from law abiding citizens during Katrina?
A few LEOs and some MIL will refuse to follow orders and resign on principle. More will refuse to enforce by looking the other way. Many will muddle along and hope to avoid the situation and ultimately give in to peer or command pressure, because they have families to feed, mortgages to pay, and like their pension plans. Finally, some number will gleefully enforce the law. MANY military people and cops are NOT gun people. They do not like guns and do not train with them and do not carry them outside work. A significant number of military members and LEOs are "only ones," who feel that "only they" are well trained/responsible enough to possess them.
Given that is the situation we face, I think it is folly to support carve outs for LEOs or other special groups in ban states. They can use whatever is good enough for the rest of the civilian population. If the ban affects them, then they may be more inclined to lobby for changes rather than meekly lining up while saying, "well, I got mine..." behind the brass who shill for more gun control.