#html-body [data-pb-style=X5EHM10]{justify-content:center;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=NBUNBV5],#html-body [data-pb-style=X5EHM10]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}Upgrade or replace the barrel on your P220 .45ACP with this original SIG SAUER part. The barrel is chambered in .45ACP. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability.