These Mini-14 scope mounts measure 5.8 inches long, and as can be seen in the photos, place the mini-red dot forward for long eye relief and quick target acquisition. The second Mini-14 scope mount is a MIL-STD-1913 dovetail rail version that also offers a low profile mounting platform for conventional red dot optics or powered scope and ring combinations. The rail is 5.7 inches long to provide ample mounting space. Both rails interface with factory Ranch Rifle integral mounts. Both rails also have relief cuts beneath the rail for unimpeded cartridge ejection.The mounts are precision machined from rugged 6061-T6 aluminum and Type III hard anodized matte black per mil-spec. All our Mini-14 accessories have been designed and manufactured to meet the rigors associated with professional use..