With the SKD AR15 FFH, you get a premium quality rail for under $200 that features a slim easy to index profile. A lean 1.52" outer diameter makes for an easier grip, especially for gloved shooters or those who prefer a "less-girthy" fit in their hand.
Each rail undergoes MIL-SPEC Type-III hardcoat anodizing for added durability. This diameter reduction and precision machining results in an ultralight package.