Lock iconRectangle 1Rectangle 2 + Rectangle 2 CopyShapeRectangle 1

GBBCustom 3D Printed TDC Hop-up Chamber Unit For LM4 Series GBBR Airsoft Gun (LM4 STYLE HOP)

  • Sale
  • $ 23.99


GBBCustom 3D Printed TDC Hop-up Chamber Unit  (LM4 STYLE HOP)

Click here for a detailed installation guide!

Top Down Center (TDC) mod for the LM4  just got a whole lot easier! TDC is a must for KWA LM4's as it greatly improves accuracy and distance. The 3D printed HOP-UP chamber was designed around TDC, and It eliminates the risk of ruining your stock hop-up chamber when doing the mod. 

Stock KWA LM4 hop-up tensioner wears quickly. No worries, this hop-up design replaces stock hop-up tensioner with a steel set screw that maintains positive contact with the hop-up bucking.

- Uses LM4 Style Hop-up Bucking. (We recommend Maple Leaf bucking for best performance)

*Complete TDC mod requires a drill press to cut a small hole on top of the lm4 receiver to reveal the set screw for hop-up adjustment. Further modification may be required.

Designed and built by H04 and Distributed Exclusively by Gas Blowback Central.

Customer Reviews

Based on 2 reviews Write a review