Century Arms Golani “SAR”
A U.S made copy of the Israeli assault rifle, the Galil. This particular Golani has two interesting modifications. The barrel was shortened and a SAR muzzle brake was added to keep it non-SBR. It also has the rather hard to find AR-15 magazine adapter. You can see the large tab on the side of the adapter where you could now release the mag as opposed to using the original mag release. Unfortunately it isn’t ambidextrous.