Every shooting incident leads to an outcry about Gun control, then the NRA works behinds the scene & things go back to being normal. Once 3D Printing becomes normal, can even the NRA & regular manufacturers even control the process?

Here is Department of Homeland security in 2013 warning that the 3D Printing guns may not be stopped:

"significant advances in three-dimensional (3D) printing capabilities, availability of free digital 3D printer files for firearms components, and difficulty regulating file sharing may present public safety risks from unqualified gun seekers who obtain or manufacture 3D printed guns," and that "proposed legislation to ban 3D printing of weapons may deter, but cannot completely prevent their production. Even if the practice is prohibited by new legislation, online distribution of these digital files will be as difficult to control as any other illegally traded music, movie or software files."

Since 2013, here are some of the advancements in printing 3D Printing guns in just the past year:

Feb 2015: Police in Australia seized 3D-printed weapons after a raid in a suburb of Gold Coast City, Queensland. the state's police force has said it would be the first time it had discovered 3D-printed firearm components in a home.

March 2015: 3D Printing Hobbyists rolled out a bigger badder version of the AR 15called the CM901 which fires 7.62 mm rounds, a heavier caliber bullet than that of the AR-15. The gun also recoils with greater force, requiring gunsmiths to print up sturdier plastic parts that can withstand the stresses of multiple rounds. After a period of trial and error, the team claims the CM901 can fire off several rounds “with little to no issues.”

May 2015: The Imura pistol, made by user “WarFairy” at the 3D modeling community site FOSSCAD, is an eight-shot pistol based on Imura’s design. It takes .22 long rifle cartridges, which are commonly used for target shooting or hunting small game, but can also seriously injure humans. The gun is named after Yoshitomo Imura who was arrested in Japan for 3D printing revolvers. Imura designed the “zig-zag” pistol, and was sentenced to two years in jail for making the weapon.

There is some discussion about banning & controlling 3D Printed guns & blue prints, but will we be able to actually enforce the law?