TacFire Low-Profile Micro Gas Block Features The TacFire Low-Profile Micro Gas Block is CNC precision machined from steel and heat treated to resist the erosion that comes from repeated exposure to high pressure high temperature gas during firing. Its low profile micro footprint allows the gas block to sit beneath most AR-15 handguards without interference giving builders a cleaner look than a standard height gas block. Sized for .750 diameter barrels the block is matched to one of the most common gas block diameters used on AR-15 platforms. A black oxide finish provides a layer of corrosion resistance suited to regular use and storage. Roll pin and set screws are included with the gas block giving builders everything needed to complete installation without sourcing separate hardware. This completeness simplifies the build process for both first time AR-15 builders and experienced armorers replacing a worn gas block. Reliable gas block installation is critical to proper cycling and this block s precision machining is intended to maintain consistent gas port alignment. For AR-15 builders working with a .750 diameter barrel the TacFire Low-Profile Micro Gas Block is available for sale at GrabAGun. TacFire Low-Profile Micro Gas Block Specifications Manufacturer: TacFire Model: Low-Profile Micro Gas Block Material: Steel Finish: Black Oxide Diameter: .750 Includes: Roll Pin / Set Screws Weight: 1.50 oz Compatible Hosts: AR-15 Available At: GrabAGun