New AEI 18.75" AR15 and ACR barrels are now manufactured, tested, and on route. 1/7. Govt Profile. Mid length-gas. 416R Stainless or 4150 CMV Phosphate and Chrome-Lined.
We have had a lot of demand from owners of our N/R ACR to purchase these accurate barrels for their AR15 rifles, so we have produced a version with gas port sized for the AR15. The profile allows for fitting of standard AR15 low profile gas block.