Got this yesterday, a metal body (only) original bic. Never seen one before and was interested; came with 2 refills and has slide button to extract the empty refill. : r/pens
The Gentleman Stationer
Amazon.com : BIC Cristal ReNew Re-Fillable Pen and 2 Refills, Black : Office Products
BIC oil-based ballpoint pen refill for 2color3color4color 0.7mm black 4901473306100 | eBay