The site recorded as Knockainy West 2 does something quieter and stranger: only its southern side retains any visible structure at all, a double kerbed wall tracing a partial arc around what was once a roughly circular enclosure measuring no more than fifteen metres by ten. A cashel, as this type is known, is simply a ringfort built in stone rather than earth and timber, common in areas where fieldstone was more readily available than good digging ground. What survives here is less a monument than a fragment, and it is that incompleteness that makes it worth attention.

The site was described by Grogan in 1989, recorded in the Archaeological Survey of Ireland under the designation Knockainy West 2. The double kerbed wall on the southern arc suggests a construction method in which two lines of upright or closely set stones defined the faces of a rubble-filled wall, a technique that appears across early medieval cashels in Munster. The surrounding townland of Knockainy West sits in County Limerick, a landscape with deep early medieval associations. Aerial photographs held by the Archaeological Survey of Ireland, taken in September 2002 and January 2003, provide additional documentation of the site from above, where the surviving stonework and the outline of the enclosure read more clearly than they do at ground level.

The site is a small and unassuming one, and visitors should not arrive expecting a well-preserved monument. The surviving southern wall section is the feature to focus on, and understanding the double kerb construction requires getting close and looking carefully at how the stones are arranged rather than taking in the whole from a distance. As with many such sites in agricultural landscapes, access and ground conditions will depend on the season and on the surrounding land use, so it is worth approaching with that in mind. The aerial photographs in the ASI archive, compiled as part of the national survey record, remain one of the clearest ways to understand the original shape of the enclosure and what has been lost beyond that single surviving arc of wall.