Hop-Up Nubs RA-R04 (Type A+B) 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.

A set of 2pcs of innovative pressure nubs EA-R02 (type A) + EA-R03 (type B) from AimTop featuring a dual-profile construction. Thanks to the option to rotate it during installation, it offers two different contact surfaces, making it compatible with a wide range of Hop-Up buckings on the market.

EA-R02

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.

EA-R03

Concave Shape: This side provides the best possible contact between the bucking surface and the BB. This shape centers the BB and, thanks to the large contact area, ensures extremely stable rotation, leading to higher accuracy and longer range.

Cylindrical Surface: The smooth, rounded side of the nub is ideal for use with buckings that have a double-bumped buckings, where a concave shape could be counterproductive.

The size is comparable to standard nubs, making this "H-Shaped" Tensioner compatible with all Tokyo Marui standard Hop-Up systems. A single part that can be adapted to various types of internal bucking protrusions simply by rotating it.

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.