The MCX VIRTUS PCP rifle is the latest expansion to the SIG AIR precision line of airguns, and the introduction of SIG AIR products to the pre-charged pneumatic (PCP) category of airguns. The MCX VIRTUS PCP doubles the muzzle energy of classic CO2 models and uses the SIG Rapid Pellet Magazine making it a great tool for target training and defending against unwanted varmints. Refilling the HPA BottleThe HPA bottle is intended to be filled with compressed air only. Do not use a standard air compressor or bicycle pump. Use only a high pressure hand pump or high pressure tank that is capable of filling >/= 3000PSI only.#html-body [data-pb-style="62DF82898EA3E"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF82898EA4B"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}