T8 M4 Roller Bolt End for Marui MWS GBB (RS Buffer Tube Inner Dimension- 25.5mm)

T8 M4 Roller Bolt End for Marui MWS GBB (RS Buffer Tube Inner Dimension- 25.5mm) Aluminum Construction Suitable For Tokyo Marui MWS Series Airsoft Gas Blow Back GBB Rifle This Rollers can help your MWS bolt cycle faster and smoother, perfect for those who are looking for an action air/competitive AR build. Compatible For RS Buffer Tube Inner Dimension- 25.5mm