T-N.T. Studio APS-X HOP-UP SYSTEM Precision Double I/D Air-cushion Inner Barrel For KJ CZ75 SP01 Shadow GBB (106mm) Category_Gastube Material: Steel/Aluminum/Plastic

Material: Steel/Aluminum/Plastic

: DP-TM-M4-AM1

45 Full Metal GBB Pistol

: NB-31(B)

Outer Barrel

T-N.T. Studio APS-X HOP-UP SYSTEM Precision Double I/D Air-cushion Inner Barrel For KJ CZ75 SP01 Shadow GBB (106mm) Category_Gastube Material: Steel/Aluminum/PlasticT 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