I picked up a used 'home built' barely shot AR and wanted a little advice. This is my first, so the only things I know about ARs are what you can find on the internet, but have no hands on experience. Everything looks pretty good (reputable name parts, setup the way I was looking for (barrel length, twist rate, handguard length, etc.) The one thing I have come across is that it has a lightweight BCG, but does not have an adjustable gas block. I'm thinking I have a couple options here and wanted to see what some of you might recommend. I could buy a 'standard' BCG to go with the standard gas block. This is pretty straight forward and requires the least amount of effort on my part. Or I could buy an adjustable gas block since I already have the lightweight BCG. This would require a bit more work and a few more dollars, but doesn't seem that difficult. The current gas block is not a 'clamp on' style as I was a little concerned with getting the gas ports lined up properly, but with the set screw type gas block, this seems more straight forward. This would give me the benefit of less recoil once I get it dialed in right, etc. and I think it would be within my capabilities and I don't mind tinkering around with it to get it right. Lastly I could shoot it a bit like it is to see how it cycles currently before making any changes. On this one, I'm not sure I would know if it is 'slightly off' if it cycles properly. Like I said, it's my first AR, so I really don't have any other to compare it to. Slightly too fast of a BCG beating up the rifle and having stronger than typical recoil would be something I don't think I would know was happening if it isn't jamming, or having other types of failures.
Any advice?