SHS Hop Up Nub

SHS Hop Up Nub — the small part that decides where the hop presses. Sold singly. The nub is the piece between the hop arm and the bucking. It is what turns adjustment into pressure, and its shape decides whether that pressure lands as a point, a line or a patch. Swapping a nub is the cheapest meaningful change you can make to how a gun groups. It costs less than almost anything else in the chamber and it alters the contact patch directly. Most stock nubs are a simple cylinder. Anything that spreads the contact more evenly along the BB tends to give steadier lift, which is the whole basis of flat and R-hop conversions. Specifications Specification Detail Part Hop up nub Manufacturer SHS Sold as Single nub Good to know before you buy Our supplier does not state a shape, hardness or which chambers this suits. We are not going to guess at any of those, so compare it against the nub you remove before fitting. Frequently asked questions What shape is it? Our supplier does not specify, and we have not found it documented. Ask before ordering if the shape matters to your build. Will it fit my hop unit? Nubs are broadly interchangeable across standard AEG chambers, but there is no universal standard. Compare it against yours. Is a new nub worth it on its own? Often, yes. It is the cheapest part in the chamber and it has a direct effect on how evenly the hop applies. ⚠ Small part, large effect: changing a nub changes muzzle energy as well as grouping, so chronograph afterwards rather than assuming nothing has moved. 💡 Titan Forge Airsoft tip: Change one thing at a time in a hop unit. Nub, bucking and barrel altered together leaves you no idea which one helped. Browse gearbox parts or message us.