Cut The SureFire RBC was developed after a military request as a measure to allow the shooter to defeat reinforcement bar. The RBC simply slides over a SureFire WARCOMP-556-CTN suppressor adapter and securely attaches via the same patented Fast-Attach mechanism used on our best-in-class, battle-proven SOCOM suppressors. While cutting through rebar with live ammunition is inherently dangerous, the RBC provides a more effective, safer scenario by aligning the bore of the weapon with the rebar and offering some protection — to the operator, those nearby, and the weapon — from spalling of the fired round and rebar fragments. Simply index the attached RBC with the rebar and apply forward pressure before firing the weapon. The RBC is merely a locating device, and it will not degrade the performance of the weapon or adversely affect ballistics of the projectile fired.