I have an AEA Standard Custom Bolt Action in .25 Caliber hated the 24" barrel so I Cut the Barrel down to 13 1/2" Threaded 1/2-20 and put an 11* Crown on it Pressure fit an Aluminum Tube with Rubber Grommets over the Barrel and use a Moderator to Fine tune the Harmonics for accuracy the pic below of the target was shot at aprox 30 yrds just messing around without a stock on the rifle. This has the Folding Stock also comes with a 3D pic rail for the air tubes. Comes with the Original 350cc Tube and an extra short tube I believe it's 160cc, two magazines and fill probe. With the short tube and the folding stock it makes this a great truck gun. It is a very capable small game carbine. The Scope and Bipod and Moderator in the pictures is not part of the deal $435 Shipped East of the Mississippi and $445 West of the Mississippi. Also available is a 450cc Bottle with the AEA adapter for an extra $100 with the rifle or $125 shipped without the rifle Below is the rifle pictured with Each air source. SHIPPING IS EXPENSIVE SO THE THE PRICE IS NON NEGOTABLE. Call or Text 732-678-6706 PP F&F