A presentation about the Tippmann Omega-PV CO2-powered airsoft rifles available at Patrol Base... "The Tippmann Omega PV Series w/ CO2 Stock blurs the line between HPA and CO2. This awesome M4 Platform Replica accepts 2 x CO2 Bulbs in the Stock which will provide hundreds of shots. Coming supplied with everything you need to get it working (except 12g CO2 Bulbs), this is the ideal Gun for those tempted by HPA Guns, but either don't want to pay the thousands of Pounds it costs to get a boutique setup or have the knowledge to do so."