Latest Complete Uppers

Riflespeed Gas Controls – An ARBuildJunkie Q&A

We recently sat down with Kyle Lynch of Riflespeed to discuss his approach to the adjustable AR gas system, called the Riflespeed Gas Control system. We discuss how the idea came about, issues with other adjustable gas systems, and why he feels Riflespeed’s Gas Control system has the potential to change the approach of AR manufacturers in the years ahead.

Dirty Bird RECCE & Dirty Bird MCF-A Ambidextrous Lower Receivers

For the past year, my go-to build has been a simple, reliable rifle put together using a Dirty Bird complete upper and lower I configured via the website. It’s seen a lot of use as a complete rifle. The build features an accurate upper and a fantastic ambidextrous lower receiver that most certainly deserves … Read more

Best AR-15 Complete Upper Receiver

What is the best AR-15 complete upper receiver assembly? It’s a question worth asking if you’re not quite ready to build your own complete upper reciever. While we obviously love building, we also love collecting uppers and complete factory ARs.

Caracal CAR816 A2 – An Improved H&K 416?

So, just what is the Caracal CAR816 A2? It’s something we had mentioned to us several times after our recent article on the H&K 416. To learn more about it, we reached out to Jeff Spalding, Caracal USA’s president.

H&K 416 – Chuck Pressburg’s Perspective

We’re hearing more and more questions about the H&K 416 lately. Specifically, “Is it worthwhile to try to build (from recently released parts kits) or buy a piston-driven H&K 416 or MR556?” To learn a bit more, we recently spoke with Chuck Pressburg about his experiences with the platform.

If you want to be among the first to know when we release new content, your best bet is to sign up via email:

We’ll keep the emails to a minimum and we will never sell or give your information to a third party.