The Spanish adopted the 5.56mm CETME-L rifle in the mid 1980s, although they only used it until the late 1990s, when it was replaced by the G36. One of the sub variants made was the LC (“Corto”) shortened version with a 12.6″ (320mm) barrel and collapsing stock. This adaptation actually required substantial changes to the internals parts of the gun, as the standard CETME-L rifle has its recoil spring housed in the buttstock – something that obviously cannot be done with a collapsing stock design. Thus, the LC model has a different bolt carrier, recoil spring, stock, and charging handle than the regular rifle.
This example is a Marcolmar production one, registered as a short-barreled rifle.