Correct. There is no one brand of AR-15. It’s an interoperable platform (for the most part). You can buy a bare lower receiver from any manufacture (basically just a part with no moving parts milled from a single block of AL). Then just go and buy various parts kits or buy the parts individually to customize to you own needs. It’s what makes them so popular. You can customize them infinitely and they’re extremely affordable and very reliable, safe and accurate.
People who own them don’t think of them as the crazy “military style” weapons you hear them described as. Most who own then just think of them as “the most standard and obvious rifle you can possibly buy”. Like you go into most gun store and it’s just the platform that is everywhere. It’s “gun” in the dictionaries in heads of gun wonders. It’s nothing “crazy” to them.
People who own them don’t think of them as the crazy “military style” weapons you hear them described as. Most who own then just think of them as “the most standard and obvious rifle you can possibly buy”. Like you go into most gun store and it’s just the platform that is everywhere. It’s “gun” in the dictionaries in heads of gun wonders. It’s nothing “crazy” to them.