Frbs M2d Set Color:Desert Tan The ERGO AR15/M16 Bolt Carrier

The ERGO AR15/M16 Bolt Carrier Group is mil-spec M16 with forward assist serrations

- Integral see-through flip-up lens caps

- Lock Mechanism: Spring Loaded

- Skeletonized Sight Body

Frbs M2d Set Color:Desert Tan The ERGO AR15/M16 Bolt CarrierThe Meprolight Flip Up Front and Rear Tritium Sight Set, 2 Rear Dots, Features: Ideal day or night back up sights for when battery operated optics fail Rear sight finger adjustable for windage Front sight finger adjustable for elevation Low profile, lightweight design May be used as primary or secondary sights Ambidextrous deployment and control High grade polymer and metal construction Spring based locking mechanism will not break or deform Mounts to