The Tiger Rock Inc. A2FS+FSP+FSP-1+FSP-2+FSP-3+ARFT AR15 front sight gas block Package offers unparalleled quality and precision for serious firearm enthusiasts. Constructed from forged, heat-treated C1137 steel, this robust assembly enhances both functionality and aesthetics, featuring a durable parkerized finish and integrated sling loop. Bayonet lugs for compatibility with tactical accessories Includes multiple front sight posts (.033mm, .052mm, .071mm) for versatility Matte black finish for a tactical aesthetic Easy elevation adjustment with a four-notch base design Robust construction ensures reliability in any situation Optimize your AR platform with this comprehensive gas block package for enhanced shooting experience.