NexxSpeed CNC Aluminum Slide Stop - Tokyo Marui Hi-CAPA 4.3 / 5.1 / Gold Match / 1911 Color:Red There is a see through

There is a see through channel below the rail to keep the mount lighter and for some firearm types

Only get this one if you have the much shorter rifle

Elite Force CQB M4

380mm x 175mm

Elevate your airsoft game with the Echo1 M28 Hop-Up Chamber

NexxSpeed CNC Aluminum Slide Stop - Tokyo Marui Hi-CAPA 4.3 / 5.1 / Gold Match / 1911 Color:Red There is a see throughThe CNC Aluminum Slide Stop is machined with precise CNC tolerances from Aluminum and Stainless Steel for improvements in stability, durability and overall performance. It is designed with Delrin parts on the back and side to help Slide Stop operate more smoothly, reducing friction between metal and metal to avoid wear and tear on other parts.