At its most collapsed position, this SCW stock only adds 4.0" to your AR15. At full extension, the Maxim SCW stock reaches 8.8 inches. With 5 total positions you can adjust for maximum comfort and multiple scenarios. Rapid deployment, purpose driven materials, and the functionality you need, the Maxim Defense SCW Stock is simply the shortest, most thought out, versatile, and durable SCW stock on the market. Specifications:Weight: 14.6 ouncesMaterial: 7075 Aluminum Alloy housingLength: 4.0 inches 1st position (closed) 5.25 inches 2nd position 6.5 inches 3rd position 7.75 inches 4th position 8.75 inches 5th position (extended)Caliber: * 5.56, 7.62x39, .300BLKFinish: * MILSPEC AnodizedColor: * Arid Dark EarthBuffer options: * STD Features:Rapid deployment - no buttons to pushExtended cheek weldEasily installs on MILSPEC AR15 lowersMilitary grade materialsProprietary integrated buffer-carrier with MILSPEC boltShortest overall length of any PDW