Zermatt Origin Short action, 308 bolt face, right bolt right port with 20 MOA picatinny rail. These actions have an extended ejection port and feed lips for use of a hinged floor plate or detachable mag. Floating controlled round feed bolt head, sliding plate extractor, mechanical ejector, savage small shank threads 1 1/16" x 20 TPI. Black nitrided finish. **** Not cut for Wyatt's extended BDL box ****