This mod adds dust cover rail for: AK-74, AKM, Saiga 12K, AKMSU and RPK* (* - Require mod that adds sight support). Additionally attachment is also available for AS VAL and PP-19 Bizon.

BeardLib is required.

Extract archive content to "mod_overrides".
How to Install Super BLT and mod_overrides mods tutorial by Master Indigo