In Germany , paintball is restricted to players over 18 years of age . Paintball markers are classified as weapons that do not require a license or permit ; they are legal to buy and use , but restricted to adults . Markers are limited to a kinetic energy of 7.5 J. Tampering with the marker to increase muzzle velocity above 214 fps can lead to confiscation/destruction of the marker and a fine . All paintball markers sold officially in Germany must be certified by the government " Physikalisch-Technische Bundesanstalt " ( PTB ) ( Federal Physical and Technical Institute ) to operate within these limits and must have a registered serial number and an official stamp on the firing mechanism . In May 2009 , reacting to the Winnenden school shooting , German lawmakers announced plans to ban games such as paintball as they allegedly trivialized and encouraged violence but the plans were retracted a few days later . Most Indoor-Paintball-Areas in Germany have a strict " No-Mil-Sim " - Policy , meaning that no camouflage clothing or real-life looking markers are allowed
Winnenden school shooting
Winnenden school shooting
Paintball