Do You Still Need ATF Form 1 for an SBR? (2026 Rules)
Since October 9, 2026 ATF no longer requires Form 1 approval to build an SBR, and the tax stamp is $0. What changed, what …
Blog
Build guides, part comparisons and picks for your next AR-15.
AR-15 Gas System Lengths Explained: Chart for Every Barrel
A chart of AR-15 gas system lengths with port distances, barrel lengths and gas tube lengths, and why the gas system must match the …
AR-15 Trigger Comparison: Which type is the best for your build?
The AR 15 system is the most popular firearm in the United States. There are hundreds of manufacturers pumping out rifles and the American …
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 …
Polymer AR-15 Lowers: Are They Worth It? (2026)
Polymer AR-15 lowers save less weight than you may have read. Where they fail, which designs fix it, and who should still choose one.