Newbie to AR's, lots of questions
This site has been so helpful in answering my questions. I thought that everyone coud help me with a few questions about AR-15's. I have grown up with pistols for most of my life and I have really been getting into IDPA competition. The same range that I shoot IDPA at has 3 gun competitions too. Some time in the next year I would like to get an AR. I have been searching the web, but it seems like all I find is the difference between the m-16 and ar-15.
1. Could someone please tell me the difference between the different uppers, (A2, A3, ect.)?
2. Are there any differences in the lowers that I should look for?
3. What is the difference between the flash supressors (bird, cage, izzy)?
4. Any pros and cons to the different manufacturers?
Which all my searching so far, I think that I like the ones with the rail on top with the removable carry handle.
Thanks in advance,