Advanced Technology International Ruger 10/22 6-Position Side-Folding Stock has 6 positions that you can collapse the gunstock and also the stock can be shot while folded. One 4" Picatinny rail and four 2" Picatinny Rails. There is a 6° Tube Drop Adapter for iron sights. Well maybe rather then me writing the I'll let them explain. - 6 Position Collapsible/Side Folding - Can Be Fired from Folded Position - One 4” Picatinny Rail - Four 2” Picatinny Rails - Removable/Adjustable Cheekrest - Non-Slip Removable Rubber Buttpad - Additional Ventilation in Forend and Top Cover - Blank Covers - Ergonomic, Textured Pistol Grip - 3 Sling Swivel Studs - 6° Tube Drop Adaptor for use with Iron Sites - DuPont Extreme Temperature Glass Reinforced Polymer So as you can see Advanced Technology's taken the Ruger 10/22 and found another killer looking Dupont Extreme Temperature Fiberglass Reinforced Polymer beast. How's that for a mouth full. It has a great price from $92.00-$110.00 we recommend trying our outdoorventures4u web site for this on http://stores.ebay.com/outdoorventures4u?_rdc=1 Or hppt://outdoorventures4u.com.