Full-length design eliminates spring bind and provides more reliable feeding, extraction and ejection. 6" model provides increased support for government-length pistols equipped with full-style compensators or extended reverse plugs. Centerless ground and heat-treated for better function and decreased wear. Mfg: Nowlin SPECS: 416 stainless steel. Heat treated to Rc 42. Available in One-piece and two-piece with standard (Std.) plug or reverse (Rev.) plug. One-piece drilled for takedown pin. Two-piece includes Allen wrench.