BCM SS410 18" w/ Geissele 13.5" MK8 rail and OCL mount

Pre-owned, lightly used. This was a factory BCM SS410 18" upper, judging by barrel stamps, it is from the 2009 time frame. It has a BCM logo upper (only used on factory builds, BCM bolt group and BCMs ionbond coated, 1/8 twist stainless barrel with factory pinned gas block. It looks like since the upper was purchased, the rail and flash hider have been swapped to a 13.5" Geissele MK8 rail, and Otter Creek Labs flash hider and collar (compatible with Ops Ins 12th Model, Allen Engineering AEM5 or Otter Creek Labs OCM5 suppressors). The pictured suppressor **is not** included. PRI Gas Buster with flat latch us also included.