The Infinity Stratos is for the entry level and intermediate spearfisher that was designed with an open muzzle.
Open Muzzles have no cover over the top, and your spear line seats your spear on your rail.
It is best suited for targeting small reef and small deep-water species. This product boasts a deep rail and is fitted with a 16mm band, a single notch 6.5mm spear and a frictionless acetal mechanism ensuring it is accurate and silent in the water. It comes standard with a DIY wishbone, tuna clip and muzzle boingi.