Tactical Safety Essentials ASM-QD Combo Model 4/15 .223 5.56 Carbine Buttstock Tube Angled Ambidextrous Dual Double Two Oval Loop Latch Adapter + "QD" Quick Detachable Rotating Push Swivel ASM-QD &fnof; Ambidextrous Double Loop Strap Adapter Replaces Original. Compatible with Both Mil-Spec and Commercial-Specs. Works Well In All Types of Configurations, and Those That Have Claw Type Connections. Easy to Install and No Need for Special Tools. 1050 Heat-Treated Carbon Steel Construction Weighing a Mere 0.7 ounces. Black Finish. Simple Secure Push Button To Detach Swivel, Allows Rapid Operation.