The PSE TAC 15i Integrated Crossbow is the complete crossbow kit-no AR-15 lower receiver is required...it's included. Now all the revolutionary features and benefits of the PSE TAC 15 are available in the new PSE TAC 15i. Featuring a fully adjustable stock and crisp trigger, the PSE TAC 15i is sure to be the hottest hunting crossbow in the woods. Mass Weight is 8 pounds axle-to-axle 17 inches at brace and 12 inches at full draw. Powerstroke 17 and a quarter inch. Lock time is 12 milliseconds. For a limited time and while supplies last the PSE Tac 15i includes the COMBO package: TAC carrying case, UTG Bipod, Scope and 3 TAC bolts!