Diameter: 30

Programmable full auto or 3 round burst capability

Battery: CR2032 Battery (Included)

Heavy weight design

the Hopup Chamber M4A Pro unit is specially designed with a new BB Latching System to prevent BB dropping after removing the magazine

Lancer Tactical Spec-Ops MT Fast Helmet m17 Diameter: 30The Lancer Tactical MT Type Helmet is a great option if you are wanting to protect your noggin and look awesome doing it. This helmet comes with two arc rails that you can use to attach lights, lasers, or cameras. It also includes a three hole night vision mount that you can use to mount compatible NVGs or recording devices. This helmet also has a plethora of velcro real estate to display patches, call signs, etc. Inside the helmet includes rebound