Features: Built-in STORM Category 5 regulator for uncompromising performance. Stock for HPA tank (not included). Wraith X HPA. Fits standard 13ci HPA tanks. Injection-molded plastic. Weighs only 6.15 oz (174 grams). Specifications: Pressure range: 60-180 psi. Output energy: 1.0-2.5 J adjustable (depending on build). Approx. 1,000 shots per 13/3,000 cu in HPA tank. Includes: WRAITH STORM Cat 5 regulator. WRAITH X HPA tank stock. Hardpoint and Mini Airline adapter for MTW or airline with AEG threaded connector. Pistol grip base plate. Allen wrenches. O-ring kit. WRAITH X 2″ x 3″ patch. HPA tank not included.