This extended picatinny rail fits your impact MKI, MKII, M3 & M4.. Huma-Air Extended Picatinny Rail for your FX Impact. Made of aircraft aluminum, sandblasted and black anodized. The stiff construction with integrated triggerguard gives great stability for your bipod or other accessories. The extra length of this extended picatinny rail is length is 210 mm. (total length measured from the front of the trigger block is 241 mm)
The last product picture shows a FX Impact with our Extended picatinny rail and our Huma-Air Extended scope rail with barrel tensioner system.