Other Details Manufacturer: Magpul Industries Manufacturer Part Number: MAG482-BLK Accessories: Buffer Tube Adjustment Type: Collapsible Color: Black Finish: Black Firearm Model: AR-15 Firearm Type: AR Rifle Fit: AR Rifles Length of Pull: 11.80"-15.30" Make: AR-15 Make/Model: AR-15 Material: Polymer Model: UBR Gen 2 Positions: 8 Product Type: A5 Length Style: Collapsible Subcategory: Stocks & Buffer Tubes Tube Included: Yes