Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .875 Adjustable Titanium Set Screw

AR-15 SENTRY ADJUSTABLE GAS BLOCKS TITANIUM SET SCREW The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that owners of the popular AR-15 rifle aren't held hostage to the limitations of traditional-length gas systems and can adjust their rifle's gas flow for their purposes. The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block comes with a simple tool that adjusts an integral gas meter one click at a time without using spring-loaded systems with small parts that are easily dama