This definition appears somewhat frequently
See other definitions of PSP
Other Resources:
Acronym Finder has 152 verified definitions for PSP
US SOCOM training. Weapon shown in photo is not product of Real Action Paintball LLC / rap4. com. Real Action Markers are identical to military M4 rifles in every respect, except that they safely shoot paintballs and cannot be modified to shoot bullets. In ALL other respects, these are REAL M4 military rifles.