Shop › FORTIS SWITCH RAIL 15.3" MLOK MOD 1 FORTIS SWITCH RAIL 15.3" MLOK MOD 1 $242.20 Fortis Manufacturing, Inc. Black, Fits AR-15, 15.3"MLOK 556-SWITCH-M1-153-ML Quantity: Add To Cart Added! Fortis Manufacturing, Inc. Black, Fits AR-15, 15.3"MLOK 556-SWITCH-M1-153-ML