I know many of you are not in favor if pinning collapsible stocks, but does this satisfy MA laws regarding telescoping stocks?
http://www.ar15.com/forums/t_7_125/988130_Magpul_MOE_and_CTR_locking_pin_for_Ban_States.html
http://www.ar15.com/forums/t_7_125/988130_Magpul_MOE_and_CTR_locking_pin_for_Ban_States.html