RCBS Precision Mic .223 Rem Headspace Gauge Set

RCBS Precision Mic for .223 Remington, part number 88304. This tool is used to measure and adjust shoulder setback/headspace on sized brass and to compare fired vs. resized cases. Green RCBS case included; label shows noticeable wear and scuffing. Great setup for reloaders tuning full-length dies for AR-15 or bolt-gun brass. Ideal for repeatable measurements without relying solely on chamber feel. See photos for exact condition of the case and label.