The Split Breech, aka Rolling Block, is the REAL 'Gun that Won The West'. At one point, it was as militarily prevalent as the AK or FAL. Saw military service from the closing days of the Civil War all the way up to the dawn of the smokeless powder era, with some in service in WW1; there are Rolling Blocks in 7x57 Mauser and .30-06.

The Rolling Block is the gun that made Remington a first-line armsmaker.