True milsim AR-15 look paintball marker with proven performance and reliability. The Sierra One has the looks, performance and reliability you would expect from a much higher priced marker. The Sierra One marker features a high performance 11” ported barrel, top and side Picatinny rails for accessories, and a magazine that doubles as tool storage. Other upgrades include an E-Trigger Kit, Response Trigger and the Cyclone Feed System.
WITH AN ADDITIONAL LONGER BARREL!! 
Other Features Include: 
  - Uses .68Cal paintballs
  - Uses the wider 98 barrel thread 
  - Semi-Automatic action 
  - Uses CO2, compressed air, or nitrogen
  - Gravity Feed 
  - Original barrel length is 11”
  - Effective Range about 150+ ft
**REFURBISHED**