Posted on November 1, 2019October 28, 2019AIMSurplus | .308/7.62×51 TiN Bolt Carrier Group View this post on Instagram One piece at a time… @aimsurplus .308 Titanium Nitride BCG just arrived for my AR10 build! Their 556 version ran flawlessly and cleaned so easily in my 300blk Sugar Weasel, so they have my business going forward! #2a #308 #308win #762 #762×51 #ar10 #ar10build #aeroprecision #ar15build #guns #gunsofinstagram #gun #secondamendment #livefreeordie #donttreadonme A post shared by Tactically Practical (@tactically_practical) on Jul 11, 2019 at 6:22am PDT