Guntec USA Low Profile Gas Block Clamp On Steel. Gas tube roll protectors should be a standard feature on any custom built Rifle or SBR stock that has not been modified from the original. Guntec offers aluminum and steel roll protectors that are ideal for this purpose. The newest Guntec USA low profile gas block clamp covers the original gas block. It replaces the standard clamp with a more permanent solution that removes the glued permanent modification. This low profile gas block clamp is great for those who are looking for a more permanent solution to the issue of gas tube related damage that can occur from changing any one of the previously mentioned items. Specifications for Guntec Usa Guntec Low Profile Gas Block Clamp On Steel: Newitem: Yes Type/color: .750 diameter clamp on design Size/finish: Low profile black oxide Material: Steel Ar-15 accessory: Y Other features: a Dimension: 1.35 x 2.10 x 4.55 Height: 1.3500 Width: 2.1000 Length: 4.5500 Package Contents: Guntec Usa Guntec Low Profile Gas Block Clamp On Steel The Guntec Usa Guntec Low Profile Gas Block Clamp On Steel is a quality addition to the Guntec USA lineup. For more great deals on AR Gas Blocks by Guntec USA please browse our GUNTEC USA Gun Parts page.