Type: BB Rifle. Manufacturer: Crosman. Model: DPMS SBR. Materials: Metal & plastic. Weight: 6.5 pounds (4.98 kilograms). Length: 26.9 - 30.4 inches. Propulsion: 12 gram CO2 dual cartridges. Action: Blowback - single action only. Ammunition Type: 4.5mm steel BB's. Ammunition Capacity: 25 rounds. FPS: 430fps. Rate of Fire: 1400 rounds per minute in full auto If you haven't figured it out already I love the Crosman DPMS SBR CO2 Blowback BB M4 Rifle and I know anyone that picks one up will love theirs too! I just wish we had them in our Replica Airguns Store but for now we are not Crosman distributes :( We do have some other nice M4/AR styled BB rifles like the HellBoy which I may put head to head against the Crosman DPMS SBR CO2 Blowback BB M4 Rifle at some point even though they are very different in how they operate and their pros and cons. Read full article here: https://www.replicaairguns.com/2018/8/3/crosman-dpms-sbr-co2-blowback-bb-m4-table-top-review Buy the Crosman DPMS SBR in Canada: https://www.replicaairguns.ca/crosman-dpms-sbr-full-auto-bb-rifle Buy the Crosman DPMS SBR in the US: https://www.replicaairguns.us/crosman-dpms-sbr-full-auto-bb-rifle