Ultimate Arms Gear .223 5.56 Caliber Rifle Empty Chamber Ejectable Safety Flag Load Indicator Device Polymer & Brass Bottom Orange Dummy Ammunition Ammo Shell Round with Lanyard String Loop Hole to Attach AR15 AR-15 M4 M-4 M16 M-16 A1 A2 Safety Indicator is Made of Durable Polymer & Brass Bottom the Can be Used Over and Over. Construction: Durable Polymer. Bottom: Brass. Color: Safety Orange. Offer you a Load Indicator that is "Safety You Can See" Hole Loop for Lanyard String Attachment of Retention Shoulder Harness. Ejectable. Safety Indicator Removed from the Chamber by Charging. Allows for Mags to be Loaded and Ready, while having the Peace of Mind Knowing that the Gun Cannot be Fired Until the Saf-T-Round is Removed from the Chamber.