A Properly Built AR Doesn’t Need Crutches

There’s a video below of one of our AR builds running full auto. Pay attention to the ejection pattern. It’s not erratic, it’s not spraying brass all over the place… it’s a consistent stream. That’s what a properly gassed and balanced rifle looks like when everything is working the way it should.

Somewhere along the line, adjustable gas blocks, heavy buffers, and all kinds of band-aid fixes became the norm. The idea now is you overgas the system from the start, then try to tune it back down with add-ons. That’s backwards.

A properly built rifle shouldn’t need to be “fixed” after the fact.

Gas system length, port size, dwell time, carrier mass, buffer system all of it works together. If those things are right from the beginning, the gun will run smooth, consistent, and predictable without needing a bunch of extra parts bolted onto it.

When the gas is right, you see it immediately in the ejection pattern. Brass exits with purpose. Not weak, not violent — just consistent. That consistency is what keeps the gun controllable, reduces unnecessary wear, and keeps everything running the way it should whether it’s semi or full auto.

Most of the “tuning” products out there exist to correct problems that were built into the rifle in the first place. That doesn’t mean they don’t have their place, but they shouldn’t be required just to make a rifle function properly.

Build it right from the start, and you don’t spend time chasing problems later.

—Nexus Defense & Machine Co.