Tippmann TMC Emergency/Defender for emergency use. Package Includes:1 x TMC Paintball Gun, 10B521 x 88g Emergency Buttstock1 x 88g Emergency CO2 Adapter2 x 20 Rounds Magazine1 x Magazine adapter1 x Hopper AdapterCompatible with these .68 projectilesFor use with 88g Cylinder Features: Proven high-performing in-line bolt system Dual feed option: can be hopper or magazine fed Extremely authentic ar look and feel Fully functional charging handle Easy-pull trigger Over-molded rubber grip Internal stainless steel gas line 2 position external selector 5 position colapsable stock Durable aluminum receiver Front and rear adjustable sights Integrated sling mounts Shoots .68 Caliber Round Projectiles Aluminum M-LOK Handguard