AR15/M4 Combo Kit Includes: 

• Receiver End Plate, Billet Steel, Black Oxide
  
• Quick Detach, Push Button Swivel - Three to Choose from 1", 1.25" or D-loop
• QD socket features a 15° rotation limiter.
• Socket is fully reversible.
• Swivels are all stainless steel construction with black oxide finish
• Low-profile, flush head design that prevents unintentional release.
• Exceeds DoD requirements and Berry Compliant.

Both Made in USA.