I'm inclined to agree. If you've got a lawyer that pulls that kind of stuff on you either:
1) You're an obvious danger to yourself or those around you, and the referral is legit.
2) You've failed to vette your lawyer properly before engaging him.
If your lawyer rats on you to the cops for lawful gun ownership, then your lawyer is unnecessarily prejudicing anything coming up against you. If it happened to me, I'd seek disbarment.
Don't ever say to your lawyer: "I've got a gun and I'll use it to get my way."