Vltor AK MOD-STOCK ADAPTER
Adapter and Extension Combo is a direct replacement for the standard
fixed AK-type stock. With this adapter installed the user will have
five stock positions, a watertight storage compartment accessible from
the rear, and an ambidextrous single-point sling mount located near the
kit is the adapter/extension only, stock or QD sling-swivel not
included. Will fit sheet metal AKM variants only (excluding the Yugo or
the Iraqi Tabuk). The adapter uses a MilSpec extension tube.