Color Black

This design prevents bending and flexing

high-quality construction

11 Tactical Pinnacle Polo 71036

SureFire SF-OBC-556 Optimized Bolt Carrier Group Specialty & Wearable Lights Color BlackSureFire SF OBC 556 Optimized Bolt Carrier Group Double Down on Reliability. Invented by Jim Sullivan, one of the original designers of the M16, the SureFire Optimized Bolt Carrier (OBC) doubles the reliability of any M4 M16 AR variant weapon system during suppressed and suppressed firing. Its patented design allows more time for reliable feeding of ammunition from the magazine and nearly eliminates bolt over base malfunctions. The OBC also delays