Made some MASSIVE headway today! I contacted the Attorney Generals Office, they referred me to the Executive Office of Public Safety, they referred me to the Department of Criminal Justice Information Services, they referred me to the Massachusetts Firearm Records Bureau, who referred me to the ATF who transferred me to NSA, who transferred me to the guy with the answers... and I got his voicemail.
All the tards at the state level kept saying IANAL and I was like I KNOW! I am not looking for legal advice... I am asking for an explanation of your SHITTY LAWS!
I then called up the Boston ATF office and after getting bounced around a little bit, I was connected with Mike. Mike, who I am sure was preoccupied as he was out on the road, seemed to give a genuine interest to my question... You can pin a muzzle brake to make it MA compliant, you can pin a stock to make it MA compliant, can you pin a magazine to make it MA compliant? He gave me his name and number and asked me to call back in the morning.
I will tackle the Bullet Button at a later point.. Want to establish the basics first.