Board Thread:General Nerf discussion/@comment-26431461-20190630160223/@comment-27306930-20190701042832

I've heard them alternatively referred to as High Airflow Manual Pump, High Airflow Manual Plunger, High Airflow Manual Prime, High Airflow Manual Projection, High Airflow Manual Projectile, Hand Actuated Manual Prime, Hand Activated Manual Pump, Hand Actuated Manual Projectile ... criminy, the list goes on and on.

Bottom line, there is no standard for "HAMP". Whatever you call it, it's all the same. Nerfers manually pull on a handle as hard as they can then a dart/arrow/missile shoots out the other end at their opponent. The stronger you are, the faster/farther the projectile goes. That's it. End of story.