- Replace the standard Hop-up Adjusting Wheel- Suitable for Tokyo Marui Hi-Capa 5

The inner diameter is 6

On top you'll find a full-length 20mm Picatinny rail for optics

and performance

At the sign of any damage do not use

Monk Customs 7" Carbon Fiber Outer Barrel (Gloss Black) lancer - Replace the standard Hop-upThe Monk outer barrels are build for super lightweight set ups! By using nylon and carbon fiber the 7 outer barrel is the most lightweight outer barrel on the market today. This outer barrel is compatible with the M4 series. . Deck out your custom gun today with the newest aftermarket accessories in the game! Let's Get It!