M16 barrel stub, no gas port, for use with your drop in 22LR conversion bolt. Overall length approximately 7”, barrel length approximately 6-1/8” as measured from 5.56mm bolt face. Perfect for a pistol or SBR build to play with your conversion kit. Asking $116 shipped OBO. Price includes USPS Priority Mail shipping & delivery confirmation. I accept PP (I'll split the fees with you at +2%) or USPS money order.