SLR Sentry 8 .875 Clamp On Adjustable Gas Block Black SA8-CM. 400 inch Set Screw Spacing. 15-position adjustability from 0 - .125 inch port opening. Metering screw and screw bore design allows repeatability and reliability only SLR has been able to...
SLR Sentry 8 .875 Clamp On Adjustable Gas Block Black SA8-CM. 400 inch Set Screw Spacing. 15-position adjustability from 0 - .125 inch port opening. Metering screw and screw bore design allows repeatability and reliability only SLR has been able to...