The shots from the defender gun are entirely safe. The bullets are made of wood and are very light, so they do not reach a very high velocity when flying out of the muzzle. Though we must warn you: it is best not to shoot at people or animals! To assemble the model, you do not need glue. All parts fit well together and are connected securely with toothpicks. In addition, the parts for assembling the gun come with a detailed instruction manual. It will clearly describe every step you need to perform to assemble the wooden model. The Defenders Gun is entirely safe for the environment. WoodTrick models are made of wood plywood, which is not harmful to the environment. The wooden Defenders Gun is ideal for anyone interested in various logical tasks, weapons, wooden models, and puzzles. The model is an excellent addition to any collection of unusual weapons and is great fun for shooting fans.