The BT Front and Rear Sights were designed to fit any BT Picatinny Rail System. These user friendly sights are an excellent choice for any scenario player looking for more accuracy out of their shots. The Front and Rear Sights easily install and detach from your marker in seconds and are adjustable. The BT design team created these Front and Rear Sights from durable polymer composites which allow you to be a little more rugged while battling it outFeatures:Fits any BT Picatinny Rail SystemAdjustable Up and Down PositionsCreated from durable polymer compositesEasy installation and removal