Independent AR-15 upper receiver coverage
AR15 Uppers is an editorial resource focused on one narrow slice of the AR-15 world: the upper receiver and everything bolted to it. We publish research-driven guides so builders can make better decisions before they spend money on parts.
We explain how upper receivers and complete uppers work, what to look for, and how to choose, not which single SKU to buy.
Content is written for people who assemble, maintain, or plan AR-15 builds themselves.
We link out to ar15parts.com as a shop destination, but our writing is not paid placement.
How we research and write
Every guide is written by the AR15 Uppers editorial team and reviewed against manufacturer spec sheets, published mil-spec documentation, and hands-on building experience. When a topic touches on safety, function, or legality, we prefer to be conservative and explicit rather than clever.
- We do not accept payment for coverage of specific brands or SKUs.
- We update guides when specs, industry consensus, or common failure modes change.
- We flag anything that is opinion, judgement, or preference rather than spec.
- We never publish legal advice. Firearm laws vary by federal, state, and local jurisdiction.