Hop-Up Nub EA-R02 (Type A) for Airsoft AEG Hop-Up chamber

A high-quality pressure nub is a key element for shooting stability and accuracy. AimTop nubs are designed to ensure even pressure on the Hop-Up bucking, leading to consistent BB rotation and extended range.

If you install the EA-R02 (Type A) nub with the profiled side facing down, you create a concave contact surface. This precisely centers the BB as it passes through and wraps around a larger surface area, ensuring more stable rotation and higher accuracy (ideal for long-range precision shooting).

By simply rotating the nub, you get a classic flat contact surface that performs like a standard solid nub. Thanks to this versatility, you can experiment with different types of Hop-Up buckings and find the ideal setting for your airsoft gun without the need to purchase multiple different nubs.

The special rubber compound ensures that the nub does not deform unevenly, which improves shot groupings. Standard dimensions allow for use in the vast majority of AEG Hop-Up chambers and barrels.