The new Ruger SR-556 Takedown, fully assembled.

If you’re an MSR shooter who likes both 5.56 and .300 AAC Blackout for different applications, Ruger’s new take on the takedown rifle may be right up your alley.

The new Ruger SR-556 Takedown is a piston-driven MSR designed to be taken apart with no tools and minimal effort. The barrel detaches from the upper receiver by moving the slider bar toward the breech, rotating the barrel, and pulling it free. Reattaching it is just as simple. Locking lugs on the outside of the barrel’s chamber anchor it to the monolithic upper.

“We are excited to bring the portability and ease of storage that we introduced with the 10/22 Takedown to a modern sporting rifle,” said Mike Fifer, CEO of Sturm, Ruger & Co. in a release. “The SR-556 Takedown has all the reliability of the original two-stage piston SR-556 and adds new and innovative features for MSR shooters.”

The barrel is removed with a simple twist—no tools.

The 16.1-inch, chrome-lined, cold hammer-forged, Mil-Spec 41V45 chrome-moly-vanadium steel barrel comes chambered in 5.56 NATO. The headspace is set at the factory, so no adjustment is necessary.

One of the features that shows this rifle was well thought out is the front sight. The windage and elevation controls allow the flip-up sight to stay zeroed on the barrel, with no need to readjust when the barrel is removed and reattached.

Now for the best part. MSRs are modular, so they lend themselves to changing calibers pretty well, but it still takes some effort. On most set-ups, the entire upper has to be swapped out. Not with this rifle. Ruger is selling a replaceable barrel kit chambered in .300 AAC Blackout. It has all the same specs as the 5.56 barrel and can be swapped out just as easily as the rifle breaks down.


The rifle ships with an MSRP of $2,049 and comes with three 30-round Magpul PMags, three full-length rail covers, a ballistic nylon case, and a lock. The .300 AAC kit, which sells for $449, comes with two metal magazines so they can be easily differentiated.

Check out Ruger’s website for the full spec sheet and ordering information.