WMD NiB-X Nickle Boron M16 Style Bolt and Carrier Group & Hammer Upgrade Kit
WMD Guns drop-in Nickle Boron M16 Style Bolt and Carrier Assembly/Group (BCG) is developed to increase reliability and ease of cleaning and maintaining your M16/AR-15 type rifles. The bolt carrier is M16 (full auto) stlye.
Posted by Chops / Swampland on 15th Aug 2012
Installed this on a 300BLK build-- Used in combo with Black Hole Weaponry barrel- I'm very pleased-Running only a few drops of oil on the rings and a light film on carrier- Runs perfectly after 200+ rounds- A little wipe with a dry cloth like new again- I will never use a standard BCG again