What is the most popular 20" AR-15 and why? I can see the positives and negatives of the following types but wanted to get input on which one is the most popular overall?
1) 20" A2 HBAR
2) 20" A2 Light
3) 20" A4/A3 HBAR Flattop
4) 20" A4/A3 Light Flattop
1) 20" A2 HBAR
2) 20" A2 Light
3) 20" A4/A3 HBAR Flattop
4) 20" A4/A3 Light Flattop
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