If you want a soon to be unicorn, 1815KM is still in stock. 1815kM is discontinued, we don't need 6315KM and 1815KM in the same space. 1815 (non mount) similarly is discontinued as well, though we have plenty in stock still. Fewer than 100 1815KM were made.

6315KM is available and shipping now, Rainier Arms should receive its 6315KM in a few days :)