Abstract: A semi-automatic rifle receiver including a housing for operating parts of the rifle and an integrated scope mount. The semi-automatic rifle receiver also includes strengthening and stabilizing features associated with the integrated scope mount. The scope mount may be a picatinny rail, a weaver rail, or some other form of mount, base, or rail. Iron sights may be included or omitted. The scope mount may be integrated by virtue of having been cast as part of the receiver, machined as part of the receiver, welded to the receiver, or otherwise affixed as an integrated part of the receiver.

Abstract: A rifle receiver including a housing for operating parts of the rifle and an integral scope mount. The scope mount may be a picatinny rail, a weaver rail, or some other form of mount or rail. Iron sights may be included or omitted. The scope mount may be integral by virtue of having been cast as part of the receiver, machined as part of the receiver, welded to the receiver, or otherwise affixed as an integral part of the receiver.