Check the listing for details. Umarex Notos Replacement ButtStock. Condition: New. Listed at 25.00 USD. The ButtStock on the airgun Umarex Notos is so thick, it prevents your cheek from getting closer to the buffer tube to see down your scope or optic without high-rise scope rings mounts. This 3d printed replacement airgun butt stock is very strong, lighter weight (by a decent amount), keeps overall length shorter so it's more compact, but is slide adjustable into 3 different holes in case you want it a little further back. You are just receiving the 3d printed airgun ButtStock that you slide on your Umarex buffer tube and a set-screw. You are NOT receiving the Umarex Notos! This ButtStock only fits the airgun Umarex Notos because they use a different size buffer tube. Do not over-tighten the set screw. If you want it in another color besides black, send me a message. This item is returnable if you don't like it, so buy with confidence.