T-N.T. Studio APS-X HOP-UP SYSTEM Precision Double I/D Air-cushion Inner Barrel For Marui MK23 GBB (132mm) Major Color_Transparent For Guarder Aluminum/ Steel Slide

For Guarder Aluminum/ Steel Slide use only

Item Code: GM0352

Green fluorescent Metal Front & Rear Sight

Full metal magazine accommodate 50 Rounds of 6mm Plastic Bullet

Double O-Ring Design increase the air tightness of the cylinder

T-N.T. Studio APS-X HOP-UP SYSTEM Precision Double I/D Air-cushion Inner Barrel For Marui MK23 GBB (132mm) Major Color_Transparent For Guarder Aluminum/ Steel SlideT N. T. Precision Double I D Air cushion Inner barrel only at the outlet of a large inner diameter. Therefore, gas envelope effect, part of the gas "coated" the BB, front guide airflow sharp and straight. Rear of BB's airflow is more strong some people think thatT N. T. Air cushion Directional Inner barrelis "whole branch is large inner diameter" the right answer is only front end ratio is the large diameter, not entire, the rear end of the inner