By Ray I.
AR retailers Radical Firearms recently released their new AR-15 .750 low profile adjustable gas block. It features a melonite coating and is made out of 4140 chromoly steel here in the USA. It adjusts up to full shutoff with zero bolt movement via a 10-32 setscrew with 4-40 brass retaining screw. The best part is the […]
Via:: The Firearm Blog