Alternate AR-15 Calibers: 9mm vs 300 Blackout vs 7.62 x 39
The 5.56 is the standard round used in the AR-15 rifle. Over the last few decades, the round has proved to be as effective …
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Build guides, part comparisons and picks for your next AR-15.
Polymer Lowers: The Future or a Flawed Idea?
The lower receiver for an AR 15 is most commonly made from anodized aluminum. Aluminum makes sense because they are lightweight, the material is …