Saber Tactical FX Impact M4 TRS Compact Rail Features Compatible with FX Impact M4 Model wth extended design. Enhanced Stability: Eliminates shroud drooping and minimizes point of impact (POI) shifts for consistent and reliable accuracy. Integrated bubble level in the rear allowing you to quickly check to make sure your gun is level. A must have for long range shooting. M-Lok slots allowing you to attach varied accessories such as; flashlight, laser and weights. It has a built in 20 MOA, giving your scope more elevation for long range shooting. A Delrin shroud clamp to prevent shroud drooping. It minimizes or eliminates any point of impact changes when switching suppressors. Suitable for UK 12ft/lb 500mm barrels or 400mm barrels. Weight = 1lb 4oz
