www.ReplicaAirguns.com Type: Airsoft Rifle. Manufacturer: BARRA. Model: Black Ops M4 Viper MK5 Materials: Mostly plastic. Weight: 4.8 pounds (2.2 kilograms). Length: 29-32.5 inches (737-825.5mm) Barrel Length: 12 inches (305mm) inner 6.08mm non-rifled. Propulsion: AEG. Action: Semi & Full Auto SAO. Ammunition Type: 6mm Airsoft BB's. Ammunition Capacity: Mid Cap 300 rounds. FPS: 420 with .12 gram Airsoft BB’s. The BARRA Black Ops M4 Viper MK5 AEG Airsoft Rifle may not have a lot of metal going on but that will bring the price tag down a lot and on the plus side it does come with everything you need to get up and running including the battery, charger and even a small back of Airsoft BB’s that won’t last long ;) I also l like the dual position iron sights that when flat utilize fiber optics front and back and when in the popped up position give you the standard peep in the back which is adjustable for windage. If you want to add a red dot, optical sight or other accessories there are lots of mounting points on the forward grip for this. Another nice touch is you also do get a metal gearbox so internal mechanical longevity should be good. If you want to take the plunge and get started with Airsoft and see if it fits for you then the BARRA Black Ops M4 Viper MK5 AEG Airsoft Rifle is a great way to test the waters and see how you like it. Read Full Review: www.replicaairguns.com/posts/2023/7/20/barra-black-ops-m4-viper-mk5-aeg-airsoft-rifle-table-top-review Buy the BARRA Black Ops M4 Viper MK5 AEG Airsoft Rifle in Canada: https://www.replicaairguns.ca/the-viper-airsoft-aeg-rifle Buy Barra AIrguns in the US: https://www.replicaairguns.us/barra-airguns