【T-NUB : Standard nub】
Standard universal type, suitable for most AEG or other gun models that use a cylindrical style HOP nub.
It has a longer coverage area than the original cylindrical HOP nub, which can completely press down the pressure point of the bucking and give the BBs more contact area to achieve better friction, but it still depends on different brands. According to the actual conditions such as the HOP chamber and the inner barrel's HOP window, trimmed and fine-tuned the nub for smooth installation.

Size : 5*6mm
Material : rubber
T-N.T. newly HOP chamber with special positioning HOP nub
The positioning design makes the HOP nub fixing, and the arc surface of the HOP pressing point can be more conformably covered on the BB, so that the buccking can produce more stable and efficient friction on the BB, thereby improving shooting distance and ballistic stability.