11-24-2013, 05:06 PM
A few questions for the vast knowledge base of the horde. Can anyone provide info/drawings on which datum is used on the different length gas systems for the AR platform? Also, what is the relationship between the gas port location and the barrel OD (.750", .875", etc.) and if there's a standard for the length of the OD that the gas block mounts to? Thank you in advance for all help provided.
