Sheridan/PMI Pirahna LB Pump Paintball Gun. Replaced valve O ring and air pipe O rings. Gun holds air, cocks and fires. Gun is over 30 years old so it has wear and patina. Please see photos for condition details. All this said, due to the nature of paintball, this gun is being sold AS-IS. No warranty or returns. These were designed to be ran on CO2. This was shooting around 270 FPS with my chrono using CO2. You will get significantly less velocity if using HPA. You can change the hammer/valve springs out to possibly use compressed air but I'll leave that to the buyer as it is a game of trial and error. Velocity was controlled by these springs too so there is no external velocity adjustment. Just want to give full transparency for those who aren't familiar with classic paintball stuff. Paintballs today are significantly smaller than those made back in the day. You may need to figure out a way to prevent rollouts if using small paint. This will ship in a USPS Priority Mail medium flat rate box. Thank you for looking.