P2219 10.5" RIS Spring M4 Rifle with Mock Dot Sight FPS 210 w/ .20G BBs - Tophatter's Inc. Weapons Store OnlineP2219 10. 5" RIS Spring Airsoft M4 Rifle Features Lightweight and sturdy ABS polymer construction Spring operation fires by pulling the charging handle Quick connect rear stock can be shouldered for stability or removed during close quarters Includes front and rear sling loops for single point slings Includes an integrated flip up front to increase target acquisition Includes a mock dot sight to increase the tactical look of your rifle Textured pistol